Archiwum kategorii: CSS

The Lost CSS Tricks of Cohost.org

Post pobrano z: The Lost CSS Tricks of Cohost.org

You would be forgiven if you’ve never heard of Cohost.org. The bespoke, Tumblr-like social media website came and went in a flash. Going public in June 2022 with invite-only registrations, Cohost’s peach and maroon landing page promised that it would be “posting, but better.” Just over two years later, in September 2024, the site announced its shutdown, its creators citing burnout and funding problems. Today, its servers are gone for good. Any link to cohost.org redirects to the Wayback Machine’s slow but comprehensive archive.

Screenshot of the Cohost.org homepage before it was shut down.

The landing page for Cohost.org, featuring our beloved eggbug.

Despite its short lifetime, I am confident in saying that Cohost delivered on its promise. This is in no small part due to its user base, consisting mostly of niche internet creatives and their friends — many of whom already considered “posting” to be an art form. These users were attracted to Cohost’s opinionated, anti-capitalist design that set it apart from the mainstream alternatives. The site was free of advertisements and follower counts, all feeds were purely chronological, and the posting interface even supported a subset of HTML.

It was this latter feature that conjured a community of its own. For security reasons, any post using HTML was passed through a sanitizer to remove any malicious or malformed elements. But unlike most websites, Cohost’s sanitizer was remarkably permissive. The vast majority of tags and attributes were allowed — most notably inline CSS styles on arbitrary elements.

Users didn’t take long to grasp the creative opportunities lurking within Cohost’s unassuming “new post” modal. Within 48 hours of going public, the fledgling community had figured out how to post poetry using the <details> tag, port the Apple homepage from 1999, and reimplement a quick-time WarioWare game. We called posts like these “CSS Crimes,” and the people who made them “CSS Criminals.” Without even intending to, the developers of Cohost had created an environment for a CSS community to thrive.

In this post, I’ll show you a few of the hacks we found while trying to push the limits of Cohost’s HTML support. Use these if you dare, lest you too get labelled a CSS criminal.

Width-hacking

Many of the CSS crimes of Cohost were powered by a technique that user @corncycle dubbed “width-hacking.” Using a combination of the <details> element and the CSS calc() function, we can get some pretty wild functionality: combination locks, tile matching games, Zelda-style top-down movement, the list goes on.

If you’ve been around the CSS world for a while, there’s a good chance you’ve been exposed to the old checkbox hack. By combining a checkbox, a label, and creative use of CSS selectors, you can use the toggle functionality of the checkbox to implement all sorts of things. Tabbed areas, push toggles, dropdown menus, etc.

However, because this hack requires CSS selectors, that meant we couldn’t use it on Cohost — remember, we only had inline styles. Instead, we used the relatively new elements <details> and <summary>. These elements provide the same visibility-toggling logic, but now directly in HTML. No weird CSS needed.

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These elements work like so: All children of the <details> element are hidden by default, except for the <summary> element. When the summary is clicked, it “opens” the parent details element, causing its children to become visible.

We can add all sorts of styles to these elements to make this example more interesting. Below, I have styled the constituent elements to create the effect of a button that lights up when you click on it.

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This is achieved by giving the <summary> element a fixed position and size, a grey background color, and an outset border to make it look like a button. When it’s clicked, a sibling <div> is revealed that covers the <summary> with its own red background and border. Normally, this <div> would block further click events, but I’ve given it the declaration pointer-events: none. Now all clicks pass right on through to the <summary> element underneath, allowing you to turn the button back off.

This is all pretty nifty, but it’s ultimately the same logic as before: something is toggled either on or off. These are only two states. If we want to make games and other gizmos, we might want to represent hundreds to thousands of states.

Width-hacking gives us exactly that. Consider the following example:

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In this example, three <details> elements live together in an inline-flex container. Because all the <summary> elements are absolutely-positioned, the width of their respective <details> elements are all zero when they’re closed.

Now, each of these three <details> has a small <div> inside. The first has a child with a width of 1px, the second a child with a width of 2px, and the third a width of 4px. When a <details> element is opened, it reveals its hidden <div>, causing its own width to increase. This increases the width of the inline-flex container. Because the width of the container is the sum of its children, this means its width directly corresponds to the specific <details> elements that are open.

For example, if just the first and third <details> are open, the inline-flex container will have the width 1px + 4px = 5px. Conversely, if the inline-flex container is 2px wide, we can infer that the only open <details> element is the second one. With this trick, we’ve managed to encode all eight states of the three <details> into the width of the container element.

This is pretty cool. Maybe we could use this as an element of some kind of puzzle game? We could show a secret message if the right combination of buttons is checked. But how do we do that? How do we only show the secret message for a specific width of that container div?

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In the preceding CodePen, I’ve added a secret message as two nested divs. Currently, this message is always visible — complete with a TODO reminding us to implement the logic to hide it unless the correct combination is set.

You may wonder why we’re using two nested divs for such a simple message. This is because we’ll be hiding the message using a peculiar method: We will make the width of the parent div.secret be zero. Because the overflow: hidden property is used, the child div.message will be clipped, and thus invisible.

Now we’re ready to implement our secret message logic. Thanks to the fact that percentage sizes are relative to the parent, we can use 100% as a stand-in for the parent’s width. We can then construct a complicated CSS calc() formula that is 350px if the container div is our target size, and 0px otherwise. With that, our secret message will be visible only when the center button is active and the others are inactive. Give it a try!

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This complicated calc() function that’s controlling the secret div’s width has the following graph:

Line chart showing the width of the secret div when the container div is at different widths.

You can see that it’s a piecewise linear curve, constructed from multiple pieces using min/max. These pieces are placed in just the right spots so that the function maxes out when the container div is 2px— which we’ve established is precisely when only the second button is active.

A surprising variety of games can be implemented using variations on this technique. Here is a tower of Hanoi game I had made that uses both width and height to track the game’s state.

SVG animation

So far, we’ve seen some basic functionality for implementing a game. But what if we want our games to look good? What if we want to add ✨animations?✨ Believe it or not, this is actually possible entirely within inline CSS using the power of SVG.

SVG (Scalable Vector Graphics) is an XML-based image format for storing vector images. It enjoys broad support on the web — you can use it in <img> elements or as the URL of a background-image property, among other things.

Like HTML, an SVG file is a collection of elements. For SVG, these elements are things like <rect>, <circle>, and <text>, to name a few. These elements can have all sorts of properties defined, such as fill color, stroke width, and font family.

A lesser-known feature of SVG is that it can contain <style> blocks for configuring the properties of these elements. In the example below, an SVG is used as the background for a div. Inside that SVG is a <style> block that sets the fillcolor of its <circle> to red.

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An even lesser-known feature of SVG is that its styles can use media queries. The size used by those queries is the size of the div it is a background of.

In the following example, we have a resizable <div> with an SVG background. Inside this SVG is a media query which will change the fill color of its <circle> to blue when the width exceeds 100px. Grab the resize handle in its bottom right corner and drag until the circle turns blue.

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Because resize handles don’t quite work on mobile, unfortunately, this and the next couple of CodePens are best experienced on desktop.

This is an extremely powerful technique. By mixing it with width-hacking, we could encode the state of a game or gizmo in the width of an SVG background image. This SVG can then show or hide specific elements depending on the corresponding game state via media queries.

But I promised you animations. So, how is that done? Turns out you can use CSS animations within SVGs. By using the CSS transition property, we can make the color of our circle smoothly transition from red to blue.

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Amazing! But before you try this yourself, be sure to look at the source code carefully. You’ll notice that I’ve had to add a 1×1px, off-screen element with the ID #hack. This element has a very simple (and nearly unnoticeable) continuous animation applied. A “dummy animation” like this is necessary to get around some web browsers’ buggy detection of SVG animation. Without that hack, our transition property wouldn’t work consistently.

For the fun of it, let’s combine this tech with our previous secret message example. Instead of toggling the secret message’s width between the values of 0px and 350px, I’ve adjusted the calc formula so that the secret message div is normally 350px, and becomes 351px if the right combination is set.

Instead of HTML/CSS, the secret message is now just an SVG background with a <text> element that says “secret message.” Using media queries, we change the transform scale of this <text> to be zero unless the div is 351px. With the transition property applied, we get a smooth transition between these two states.

Click the center button to activate the secret message:

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The first cohost user to discover the use of media queries within SVG backgrounds was @ticky for this post. I don’t recall who figured out they could animate, but I used the tech quite extensively for this quiz that tells you what kind of soil you’d like if you were a worm.

Wrapping up

And that’s will be all for now. There are a number of techniques I haven’t touched on — namely the fun antics one can get up to with the resize property. If you’d like to explore the world of CSS crimes further, I’d recommend this great linkdump by YellowAfterlife, or this video retrospective by rebane2001.


It will always hurt to describe Cohost in the past tense. It truly was a magical place, and I don’t think I’ll be able to properly convey what it was like to be there at its peak. The best I can do is share the hacks we came up with: the lost CSS tricks we invented while “posting, but better.”


The Lost CSS Tricks of Cohost.org originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

“Pretty” is in the eye of the beholder

Post pobrano z: “Pretty” is in the eye of the beholder

Hey, did you see the post Jen Simmons published about WebKit’s text-wrap: pretty implementation? It was added to Safari Technology Preview and can be tested now, as in, like, today. Slap this in a stylesheet and your paragraphs get a nice little makeover that improves the ragging, reduces hyphenation, eliminates typographic orphans at the end of the last line, and generally avoids large typographic rivers as a result. The first visual in the post tells the full story, showing how each of these is handled.

A screenshot of paragraph text that demonstrates a short last line, bad rag, bad hyphenation, and a typographic river.
Credit: WebKit Blog

That’s a lot of heavy lifting for a single value! And according to Jen, this is vastly different from Chromium’s implementation of the exact same feature.

According to an article by the Chrome team, Chromium only makes adjustments to the last four lines of a paragraph. It’s focused on preventing short last lines. It also adjusts hyphenation if consecutive hyphenated lines appear at the end of a paragraph.

Jen suggests that performance concerns are the reason for the difference. It does sound like the pretty value does a lot of work, and you might imagine that would have a cumulative effect when we’re talking about long-form content where we’re handling hundreds, if not thousands, of lines of text. If it sounds like Safari cares less about performance, that’s not the case, as their approach is capable of handling the load.

One thing to know as a developer, the performance of text-wrap is not affected by how many elements on the page it’s applied to. Perf concerns emerge as the pretty algorithm takes more and more lines into consideration as it calculates what to do. In WebKit-based browsers or apps, your text element would need to be many hundreds or thousands of lines long to see a performance hit — and that kind of content is unusual on the web. If your content is broken up into typical-length paragraphs, then you have no reason to worry. Use text-wrap: pretty as much as you want, and rely on our browser engineers to ensure your users will not experience any downsides.

Great, carry on! But now you know that two major browsers have competing implementations of the same feature. I’ve been unclear on the terminology of pretty since it was specced, and now it truly seems that what is considered “pretty” really is in the eye of the beholder. And if you’re hoping to choose a side, don’t, because the specification is intentionally unopinionated in this situation, as it says (emphasis added):

The user agent may among other things attempt to avoid excessively short last lines… but it should also improve the layout in additional ways. The precise set of improvements is user agent dependent, and may include things such as: reducing the variation in length between lines; avoiding typographic rivers; prioritizing different classes of soft wrap opportunities, hyphenation opportunities, or justification opportunities; avoiding hyphenation on too many consecutive lines.

So, there you have it. One new feature. Two different approaches. Enjoy your new typographic powers. 💪


“Pretty” is in the eye of the beholder originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

So, You Want to Give Up CSS Pre- and Post-Processors…

Post pobrano z: So, You Want to Give Up CSS Pre- and Post-Processors…

There was once upon a time when native CSS lacked many essential features, leaving developers to come up with all sorts of ways to make CSS easier to write over the years.

These ways can mostly be categorized into two groups:

  1. Pre-processors
  2. Post-processors

Pre-processors include tools like Sass, Less, and Stylus. Like what the category’s name suggests, these tools let you write CSS in their syntax before compiling your code into valid CSS.

Post-processors work the other way — you write non-valid CSS syntax into a CSS file, then post-processors will change those values into valid CSS.

There are two major post-processors today:

  • PostCSS
  • LightningCSS

PostCSS is the largest kid on the block while Lightning CSS is a new and noteworthy one. We’ll talk about them both in a bit.

I think post-processors have won the compiling game

Post-processors have always been on the verge of winning since PostCSS has always been a necessary tool in the toolchain.

The most obvious (and most useful) PostCSS plugin for a long time is Autoprefixer — it creates vendor prefixes for you so you don’t have to deal with them.

/* Input */
.selector {
  transform: /* ... */; 
}

.selector {
  -webkit-transform: /* ... */;
  transform: /* ... */;
}

Arguably, we don’t need Autoprefixer much today because browsers are more interopable, but nobody wants to go without Autoprefixer because it eliminates our worries about vendor prefixing.

What has really tilted the balance towards post-processors includes:

  1. Native CSS gaining essential features
  2. Tailwind removing support for pre-processors
  3. Lightning CSS

Let me expand on each of these.

Native CSS gaining essential features

CSS pre-processors existed in the first place because native CSS lacked features that were critical for most developers, including:

  • CSS variables
  • Nesting capabilities
  • Allowing users to break CSS into multiple files without additional fetch requests
  • Conditionals like if and for
  • Mixins and functions

Native CSS has progressed a lot over the years. It has gained great browser support for the first two features:

  • CSS Variables
  • Nesting

With just these two features, I suspect a majority of CSS users won’t even need to fire up pre-processors or post-processors. What’s more, The if() function is coming to CSS in the future too.

But, for the rest of us who needs to make maintenance and loading performance a priority, we still need the third feature — the ability to break CSS into multiple files. This can be done with Sass’s use feature or PostCSS’s import feature (provided by the postcss-import plugin).

PostCSS also contains plugins that can help you create conditionals, mixins, and functions should you need them.

Although, from my experience, mixins can be better replaced with Tailwind’s @apply feature.

This brings us to Tailwind.

Tailwind removing support for pre-processors

Tailwind 4 has officially removed support for pre-processors. From Tailwind’s documentation:

Tailwind CSS v4.0 is a full-featured CSS build tool designed for a specific workflow, and is not designed to be used with CSS pre-processors like Sass, Less, or Stylus. Think of Tailwind CSS itself as your pre-processor — you shouldn’t use Tailwind with Sass for the same reason you wouldn’t use Sass with Stylus. Since Tailwind is designed for modern browsers, you actually don’t need a pre-processor for things like nesting or variables, and Tailwind itself will do things like bundle your imports and add vendor prefixes.

If you included Tailwind 4 via its most direct installation method, you won’t be able to use pre-processors with Tailwind.

@import `tailwindcss`

That’s because this one import statement makes Tailwind incompatible with Sass, Less, and Stylus.

But, (fortunately), Sass lets you import CSS files if the imported file contains the .css extension. So, if you wish to use Tailwind with Sass, you can. But it’s just going to be a little bit wordier.

@layer theme, base, components, utilities;

@import "tailwindcss/theme.css" layer(theme);
@import "tailwindcss/preflight.css" layer(base);
@import "tailwindcss/utilities.css" layer(utilities);

Personally, I dislike Tailwind’s preflight styles so I exclude them from my files.

@layer theme, base, components, utilities;
@import 'tailwindcss/theme.css' layer(theme);
@import 'tailwindcss/utilities.css' layer(utilities);

Either way, many people won’t know you can continue to use pre-processors with Tailwind. Because of this, I suspect pre-processors will get less popular as Tailwind gains more momentum.

Now, beneath Tailwind is a CSS post-processor called Lightning CSS, so this brings us to talking about that.

Lightning CSS

Lightning CSS is a post-processor can do many things that a modern developer needs — so it replaces most of the PostCSS tool chain including:

Besides having a decent set of built-in features, it wins over PostCSS because it’s incredibly fast.

Lightning CSS is over 100 times faster than comparable JavaScript-based tools. It can minify over 2.7 million lines of code per second on a single thread.

Comparing build times for CSS Nano (544 milliseconds), ES Build (17 milliseconds), and Lightning CSS (4 milliseconds).

Speed helps Lightning CSS win since many developers are speed junkies who don’t mind switching tools to achieve reduced compile times. But, Lightning CSS also wins because it has great distribution.

It can be used directly as a Vite plugin (that many frameworks support). Ryan Trimble has a step-by-step article on setting it up with Vite if you need help.

// vite.config.mjs
export default {
  css: {
    transformer: 'lightningcss'
  },
  build: {
    cssMinify: 'lightningcss'
  }
};

If you need other PostCSS plugins, you can also include that as part of the PostCSS tool chain.

// postcss.config.js
// Import other plugins...
import lightning from 'postcss-lightningcss'

export default {
  plugins: [lightning, /* Other plugins */],
}

Many well-known developers have switched to Lightning CSS and didn’t look back. Chris Coyier says he’ll use a “super basic CSS processing setup” so you can be assured that you are probably not stepping in any toes if you wish to switch to Lightning, too.

If you wanna ditch pre-processors today

You’ll need to check the features you need. Native CSS is enough for you if you need:

  • CSS Variables
  • Nesting capabilities

Lightning CSS is enough for you if you need:

  • CSS Variables
  • Nesting capabilities
  • import statements to break CSS into multiple files

Tailwind (with @apply) is enough for you if you need:

  • all of the above
  • Mixins

If you still need conditionals like if, for and other functions, it’s still best to stick with Sass for now. (I’ve tried and encountered interoperability issues between postcss-for and Lightning CSS that I shall not go into details here).

That’s all I want to share with you today. I hope it helps you if you have been thinking about your CSS toolchain.


So, You Want to Give Up CSS Pre- and Post-Processors… originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

Anchor Positioning Just Don’t Care About Source Order

Post pobrano z: Anchor Positioning Just Don’t Care About Source Order

Ten divs walk into a bar:

<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
<div>9</div>
<div>10</div>

There’s not enough chairs for them to all sit at the bar, so you need the tenth div to sit on the lap of one of the other divs, say the second one. We can visually cover the second div with the tenth div but have to make sure they are sitting next to each other in the HTML as well. The order matters.

<div>1</div>
<div>2</div>
<div>10</div><!-- Sitting next to Div #2-->
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
<div>9</div>

The tenth div needs to sit on the second div’s lap rather than next to it. So, perhaps we redefine the relationship between them and make this a parent-child sorta thing.

<div>1</div>
<div class="parent">
  2
  <div class="child">10</div><!-- Sitting in Div #2's lap-->
</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
<div>9</div>

Now we can do a little tricky positioning dance to contain the tenth div inside the second div in the CSS:

.parent {
  position: relative; /* Contains Div #10 */
}

.child {
  position: absolute;
}

We can inset the child’s position so it is pinned to the parent’s top-left edge:

.child {
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
}

And we can set the child’s width to 100% of the parent’s size so that it is fully covering the parent’s lap and completely obscuring it.

.child {
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  width: 100%;
}

Cool, it works!

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Anchor positioning simplifies this process a heckuva lot because it just doesn’t care where the tenth div is in the HTML. Instead, we can work with our initial markup containing 10 individuals exactly as they entered the bar. You’re going to want to follow along in the latest version of Chrome since anchor positioning is only supported there by default at the time I’m writing this.

<div>1</div>
<div class="parent">2</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
<div>9</div>
<div class="child">10</div>

Instead, we define the second div as an anchor element using the anchor-name property. I’m going to continue using the .parent and .child classes to keep things clear.

.parent {
  anchor-name: --anchor; /* this can be any name formatted as a dashed ident */
}

Then we connect the child to the parent by way of the position-anchor property:

.child {
  position-anchor: --anchor; /* has to match the `anchor-name` */
}

The last thing we have to do is position the child so that it covers the parent’s lap. We have the position-area property that allows us to center the element over the parent:

.child {
  position-anchor: --anchor;
  position-area: center;
}

If we want to completely cover the parent’s lap, we can set the child’s size to match that of the parent using the anchor-size() function:

.child {
  position-anchor: --anchor;
  position-area: center;
  width: anchor-size(width);
}
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No punchline — just one of the things that makes anchor positioning something I’m so excited about. The fact that it eschews HTML source order is so CSS-y because it’s another separation of concerns between content and presentation.


Anchor Positioning Just Don’t Care About Source Order originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

Creating a “Starred” Feed

Post pobrano z: Creating a “Starred” Feed

Chris wrote about “Likes” pages a long while back. The idea is rather simple: “Like” an item in your RSS reader and display it in a feed of other liked items. The little example Chris made is still really good.

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There were two things Chris noted at the time. One was that he used a public CORS proxy that he wouldn’t use in a production environment. Good idea to nix that, security and all. The other was that he’d consider using WordPress transients to fetch and cache the data to work around CORS.

I decided to do that! The result is this WordPress block I can drop right in here. I’ll plop it in a <details> to keep things brief.

Open Starred Feed

One of the running jokes and/or discussion I am sick and tired of is people belittling HTML. Yes, HTML is not a programming language. No, HTML should not just be a compilation target. Learning HTML is a solid investment and not hard to do.

I am not…

I’m playing with making cross-document view transitions work on this blog.

Nothing fancy. Mostly copying how Dave Rupert does it on his site where you get a cross-fade animation on the whole page generally, and a little position animation on the page title specifically.

<img data-recalc-dims="1" loading="lazy" decoding="async" src="https://i0.wp.com/cdn.jim-nielsen.com/blog/2025/view-transitions-blog.gif?resize=480%2C291&ssl=1" width="480" height="291"…

We can use the :empty pseudo-class as a way to style elements on your webpage that are empty.

You might wonder why you’d want to style something that’s empty. Let’s say you’re creating a todo list.

You want to put your todo items in a list, but what about when you don’t…

Back in 2023, I belatedly jumped on the bandwagon of people posting their CSS wish lists for the coming year.  This year I’m doing all that again, less belatedly! (I didn’t do it last year because I couldn’t even.  Get it?)

I started this post by looking at what I…

It does, actually. In Firefox. Sometimes.

A major risk of using ARIA to define text content is it typically gets overlooked in translation. Automated translation services often do not capture it. Those who pay for localization services frequently miss content in ARIA attributes when sending text strings to localization vendors.

Content buried…

It’s a little different. For one, I’m only fetching 10 items at a time. We could push that to infinity but that comes with a performance tax, not to mention I have no way of organizing the items for them to be grouped and filtered. Maybe that’ll be a future enhancement!

The Chris demo provided the bones and it does most of the heavy lifting. The “tough” parts were square-pegging the thing into a WordPress block architecture and then getting transients going. This is my first time working with transients, so I thought I’d share the relevant code and pick it apart.

function fetch_and_store_data() {
  $transient_key = 'fetched_data';
  $cached_data = get_transient($transient_key);

  if ($cached_data) {
    return new WP_REST_Response($cached_data, 200);
  }

  $response = wp_remote_get('https://feedbin.com/starred/a22c4101980b055d688e90512b083e8d.xml');
  if (is_wp_error($response)) {
    return new WP_REST_Response('Error fetching data', 500);
  }

  $body = wp_remote_retrieve_body($response);
  $data = simplexml_load_string($body, 'SimpleXMLElement', LIBXML_NOCDATA);
  $json_data = json_encode($data);
  $array_data = json_decode($json_data, true);

  $items = [];
  foreach ($array_data['channel']['item'] as $item) {
    $items[] = [
      'title' => $item['title'],
      'link' => $item['link'],
      'pubDate' => $item['pubDate'],
      'description' => $item['description'],
    ];
  }

  set_transient($transient_key, $items, 12 * HOUR_IN_SECONDS);

  return new WP_REST_Response($items, 200);
}

add_action('rest_api_init', function () {
  register_rest_route('custom/v1', '/fetch-data', [
    'methods' => 'GET',
    'callback' => 'fetch_and_store_data',
  ]);
});

Could this be refactored and written more efficiently? All signs point to yes. But here’s how I grokked it:

function fetch_and_store_data() {

}

The function’s name can be anything. Naming is hard. The first two variables:

$transient_key = 'fetched_data';
$cached_data = get_transient($transient_key);

The $transient_key is simply a name that identifies the transient when we set it and get it. In fact, the $cached_data is the getter so that part’s done. Check!

I only want the $cached_data if it exists, so there’s a check for that:

if ($cached_data) {
  return new WP_REST_Response($cached_data, 200);
}

This also establishes a new response from the WordPress REST API, which is where the data is cached. Rather than pull the data directly from Feedbin, I’m pulling it and caching it in the REST API. This way, CORS is no longer an issue being that the starred items are now locally stored on my own domain. That’s where the wp_remote_get() function comes in to form that response from Feedbin as the origin:

$response = wp_remote_get('https://feedbin.com/starred/a22c4101980b055d688e90512b083e8d.xml');

Similarly, I decided to throw an error if there’s no $response. That means there’s no freshly $cached_data and that’s something I want to know right away.

if (is_wp_error($response)) {
  return new WP_REST_Response('Error fetching data', 500);
}

The bulk of the work is merely parsing the XML data I get back from Feedbin to JSON. This scours the XML and loops through each item to get its title, link, publish date, and description:

$body = wp_remote_retrieve_body($response);
$data = simplexml_load_string($body, 'SimpleXMLElement', LIBXML_NOCDATA);
$json_data = json_encode($data);
$array_data = json_decode($json_data, true);

$items = [];
foreach ($array_data['channel']['item'] as $item) {
  $items[] = [
    'title' => $item['title'],
    'link' => $item['link'],
    'pubDate' => $item['pubDate'],
    'description' => $item['description'],
  ];
}

“Description” is a loaded term. It could be the full body of a post or an excerpt — we don’t know until we get it! So, I’m splicing and trimming it in the block’s Edit component to stub it at no more than 50 words. There’s a little risk there because I’m rendering the HTML I get back from the API. Security, yes. But there’s also the chance I render an open tag without its closing counterpart, muffing up my layout. I know there are libraries to address that but I’m keeping things simple for now.

Now it’s time to set the transient once things have been fetched and parsed:

set_transient($transient_key, $items, 12 * HOUR_IN_SECONDS);

The WordPress docs are great at explaining the set_transient() function. It takes three arguments, the first being the $transient_key that was named earlier to identify which transient is getting set. The other two:

  • $value: This is the object we’re storing in the named transient. That’s the $items object handling all the parsing.
  • $expiration: How long should this transient last? It wouldn’t be transient if it lingered around forever, so we set an amount of time expressed in seconds. Mine lingers for 12 hours before it expires and then updates the next time a visitor hits the page.

OK, time to return the items from the REST API as a new response:

return new WP_REST_Response($items, 200);

That’s it! Well, at least for setting and getting the transient. The next thing I realized I needed was a custom REST API endpoint to call the data. I really had to lean on the WordPress docs to get this going:

add_action('rest_api_init', function () {
  register_rest_route('custom/v1', '/fetch-data', [
    'methods' => 'GET',
    'callback' => 'fetch_and_store_data',
  ]);
});

That’s where I struggled most and felt like this all took wayyyyy too much time. Well, that and sparring with the block itself. I find it super hard to get the front and back end components to sync up and, honestly, a lot of that code looks super redundant if you were to scope it out. That’s another story altogether.

Enjoy reading what we’re reading! I put a page together that pulls in the 10 most recent items with a link to subscribe to the full feed.


Creating a “Starred” Feed originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

Fancy Menu Navigation Using Anchor Positioning

Post pobrano z: Fancy Menu Navigation Using Anchor Positioning

You have for sure heard about the new CSS Anchor Positioning, right? It’s a feature that allows you to link any element from the page to another one, i.e., the anchor. It’s useful for all the tooltip stuff, but it can also create a lot of other nice effects.

In this article, we will study menu navigation where I rely on anchor positioning to create a nice hover effect on links.

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Cool, right? We have a sliding effect where the blue rectangle adjusts to fit perfectly with the text content over a nice transition. If you are new to anchor positioning, this example is perfect for you because it’s simple and allows you to discover the basics of this new feature. We will also study another example so stay until the end!

Note that only Chromium-based browsers fully support anchor positioning at the time I’m writing this. You’ll want to view the demos in a browser like Chrome or Edge until the feature is more widely supported in other browsers.

The initial configuration

Let’s start with the HTML structure which is nothing but a nav element containing an unordered list of links:

<nav>
  <ul>
    <li><a href="#">Home</a></li>
    <li class="active"><a href="#">About</a></li>
    <li><a href="#">Projects</a></li>
    <li><a href="#">Blog</a></li>
    <li><a href="#">Contact</a></li>
  </ul>
</nav>

We will not spend too much time explaining this structure because it can be different if your use case is different. Simply ensure the semantic is relevant to what you are trying to do. As for the CSS part, we will start with some basic styling to create a horizontal menu navigation.

ul {
  padding: 0;
  margin: 0;
  list-style: none;
  display: flex;
  gap: .5rem;
  font-size: 2.2rem;
}

ul li a {
  color: #000;
  text-decoration: none;
  font-weight: 900;
  line-height: 1.5;
  padding-inline: .2em;
  display: block;
}

Nothing fancy so far. We remove some default styling and use Flexbox to align the elements horizontally.

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Sliding effect

First off, let’s understand how the effect works. At first glance, it looks like we have one rectangle that shrinks to a small height, moves to the hovered element, and then grows to full height. That’s the visual effect, but in reality, more than one element is involved!

Here is the first demo where I am using different colors to better see what is happening.

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Each menu item has its own “element” that shrinks or grows. Then we have a common “element” (the one in red) that slides between the different menu items. The first effect is done using a background animation and the second one is where anchor positioning comes into play!

The background animation

We will animate the height of a CSS gradient for this first part:

/* 1 */
ul li {
  background: 
    conic-gradient(lightblue 0 0)
    bottom/100% 0% no-repeat;
  transition: .2s;
}

/* 2 */
ul li:is(:hover,.active) {
  background-size: 100% 100%;
  transition: .2s .2s;
}

/* 3 */
ul:has(li:hover) li.active:not(:hover) {
  background-size: 100% 0%;
  transition: .2s;
}

We’ve defined a gradient with a 100% width and 0% height, placed at the bottom. The gradient syntax may look strange, but it’s the shortest one that allows me to have a single-color gradient.

Related: “How to correctly define a one-color gradient”

Then, if the menu item is hovered or has the .active class, we make the height equal to 100%. Note the use of the delay here to make sure the growing happens after the shrinking.

Finally, we need to handle a special case with the .active item. If we hover any item (that is not the active one), then the .active item gets the shirking effect (the gradient height is equal to 0%). That’s the purpose of the third selector in the code.

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Our first animation is done! Notice how the growing begins after the shrinking completes because of the delay we defined in the second selector.

The anchor positioning animation

The first animation was quite easy because each item had its own background animation, meaning we didn’t have to care about the text content since the background automatically fills the whole space.

We will use one element for the second animation that slides between all the menu items while adapting its width to fit the text of each item. This is where anchor positioning can help us.

Let’s start with the following code:

ul:before {
  content:"";
  position: absolute;
  position-anchor: --li;
  background: red;
  transition: .2s;
}

ul li:is(:hover, .active) {
  anchor-name: --li;
}

ul:has(li:hover) li.active:not(:hover) {
  anchor-name: none;
}

To avoid adding an extra element, I will prefer using a pseudo-element on the ul. It should be absolutely-positioned and we will rely on two properties to activate the anchor positioning.

We define the anchor with the anchor-name property. When a menu item is hovered or has the .active class, it becomes the anchor element. We also have to remove the anchor from the .active item if another item is in a hovered state (hence, the last selector in the code). In other words, only one anchor is defined at a time.

Then we use the position-anchor property to link the pseudo-element to the anchor. Notice how both use the same notation --li. It’s similar to how, for example, we define @keyframes with a specific name and later use it inside an animation property. Keep in mind that you have to use the <dashed-indent> syntax, meaning the name must always start with two dashes (--).

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The pseudo-element is correctly placed but nothing is visible because we didn’t define any dimension! Let’s add the following code:

ul:before {
  bottom: anchor(bottom);
  left: anchor(left);
  right: anchor(right);
  height: .2em;  
}

The height property is trivial but the anchor() is a newcomer. Here’s how Juan Diego describes it in the Almanac:

The CSS anchor() function takes an anchor element’s side and resolves to the <length> where it is positioned. It can only be used in inset properties (e.g. top, bottom, bottom, left, right, etc.), normally to place an absolute-positioned element relative to an anchor.

Let’s check the MDN page as well:

The anchor() CSS function can be used within an anchor-positioned element’s inset property values, returning a length value relative to the position of the edges of its associated anchor element.

Usually, we use left: 0 to place an absolute element at the left edge of its containing block (i.e., the nearest ancestor having position: relative). The left: anchor(left) will do the same but instead of the containing block, it will consider the associated anchor element.

That’s all — we are done! Hover the menu items in the below demo and see how the pseudo-element slides between them.

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Each time you hover over a menu item it becomes the new anchor for the pseudo-element (the ul:before). This also means that the anchor(...) values will change creating the sliding effect! Let’s not forget the use of the transition which is important otherwise, we will have an abrupt change.

We can also write the code differently like this:

ul:before {
  content:"";
  position: absolute;
  inset: auto anchor(right, --li) anchor(bottom, --li) anchor(left, --li);
  height: .2em;  
  background: red;
  transition: .2s;
}

In other words, we can rely on the inset shorthand instead of using physical properties like left, right, and bottom, and instead of defining position-anchor, we can include the anchor’s name inside the anchor() function. We are repeating the same name three times which is probably not optimal here but in some situations, you may want your element to consider multiple anchors, and in such cases, this syntax will make sense.

Combining both effects

Now, we combine both effects and, tada, the illusion is perfect!

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Pay attention to the transition values where the delay is important:

ul:before {
  transition: .2s .2s;
}

ul li {
  transition: .2s;
}

ul li:is(:hover,.active) {
  transition: .2s .4s;
}

ul:has(li:hover) li.active:not(:hover) {
  transition: .2s;
}

We have a sequence of three animations — shrink the height of the gradient, slide the pseudo-element, and grow the height of the gradient — so we need to have delays between them to pull everything together. That’s why for the sliding of the pseudo-element we have a delay equal to the duration of one animation (transition: .2 .2s) and for the growing part the delay is equal to twice the duration (transition: .2s .4s).

Bouncy effect? Why not?!

Let’s try another fancy animation in which the highlight rectangle morphs into a small circle, jumps to the next item, and transforms back into a rectangle again!

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I won’t explain too much for this example as it’s your homework to dissect the code! I’ll offer a few hints so you can unpack what’s happening.

Like the previous effect, we have a combination of two animations. For the first one, I will use the pseudo-element of each menu item where I will adjust the dimension and the border-radius to simulate the morphing. For the second animation, I will use the ul pseudo-element to create a small circle that I move between the menu items.

Here is another version of the demo with different coloration and a slower transition to better visualize each animation:

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The tricky part is the jumping effect where I am using a strange cubic-bezier() but I have a detailed article where I explain the technique in my CSS-Tricks article “Advanced CSS Animation Using cubic-bezier()”.

Conclusion

I hope you enjoyed this little experimentation using the anchor positioning feature. We only looked at three properties/values but it’s enough to prepare you for this new feature. The anchor-name and position-anchor properties are the mandatory pieces for linking one element (often called a “target” element in this context) to another element (what we call an “anchor” element in this context). From there, you have the anchor() function to control the position.

Related: CSS Anchor Positioning Guide


Fancy Menu Navigation Using Anchor Positioning originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

Web-Slinger.css: Across the Swiper-Verse

Post pobrano z: Web-Slinger.css: Across the Swiper-Verse

My previous article warned that horizontal motion on Tinder has irreversible consequences. I’ll save venting on that topic for a different blog, but at first glance, swipe-based navigation seems like it could be a job for Web-Slinger.css, your friendly neighborhood experimental pure CSS Wow.js replacement for one-way scroll-triggered animations. I haven’t managed to fit that description into a theme song yet, but I’m working on it.

In the meantime, can Web-Slinger.css swing a pure CSS Tinder-style swiping interaction to indicate liking or disliking an element? More importantly, will this experiment give me an excuse to use an image of Spider Pig, in response to popular demand in the bustling comments section of my previous article? Behold the Spider Pig swiper, which I propose as a replacement for captchas because every human with a pulse loves Spider Pig. With that unbiased statement in mind, swipe left or right below (only Chrome and Edge for now) to reveal a counter showing how many people share your stance on Spider Pig.

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Broaden your horizons

The crackpot who invented Web-Slinger.css seems not to have considered horizontal scrolling, but we can patch that maniac’s monstrous creation like so:

[class^="scroll-trigger-"] {
  view-timeline-axis: x;
}

This overrides the default behavior for marker elements with class names using the Web-Slinger convention of scroll-trigger-n, which activates one-way, scroll-triggered animations. By setting the timeline axis to x, the scroll triggers only run when they are revealed by scrolling horizontally rather than vertically (which is the default). Otherwise, the triggers would run straightaway because although they are out of view due to the container’s width, they will all be above the fold vertically when we implement our swiper.

My steps in laying the foundation for the above demo were to fork this awesome JavaScript demo of Tinder-style swiping by Nikolay Talanov, strip out the JavaScript and all the cards except for one, then import Web-Slinger.css and introduce the horizontal patch explained above. Next, I changed the card’s container to position: fixed, and introduced three scroll-snapping boxes side-by-side, each the height and width of the viewport. I set the middle slide to scroll-align: center so that the user starts in the middle of the page and has the option to scroll backwards or forwards.

Sidenote: When unconventionally using scroll-driven animations like this, a good mindset is that the scrollable element needn’t be responsible for conventionally scrolling anything visible on the page. This approach is reminiscent of how the first thing you do when using checkbox hacks is hide the checkbox and make the label look like something else. We leverage the CSS-driven behaviors of a scrollable element, but we don’t need the default UI behavior.

I put a div marked with scroll-trigger-1 on the third slide and used it to activate a rejection animation on the card like this:

<div class="demo__card on-scroll-trigger-1 reject">
  <!-- HTML for the card -->
</div>

<main>
  <div class="slide">
  </div>
  <div id="middle" class="slide">
  </div>
  <div class="slide">
      <div class="scroll-trigger-1"></div>
  </div>
</main>

It worked the way I expected! I knew this would be easy! (Narrator: it isn’t, you’ll see why next.)

<div class="on-scroll-trigger-2 accept">
  <div class="demo__card on-scroll-trigger-2 reject">
  <!-- HTML for the card -->
  </div>
</div>

<main>
  <div class="slide">
      <div class="scroll-trigger-2"></div>
  </div>
  <div id="middle" class="slide">
  </div>
  <div class="slide">
      <div class="scroll-trigger-1"></div>
  </div>
</main>

After adding this, Spider Pig is automatically ”liked” when the page loads. That would be appropriate for a card that shows a person like myself who everybody automatically likes — after all, a middle-aged guy who spends his days and nights hacking CSS is quite a catch. By contrast, it is possible Spider Pig isn’t everyone’s cup of tea. So, let’s understand why the swipe right implementation would behave differently than the swipe left implementation when we thought we applied the same principles to both implementations.

Take a step back

This bug drove home to me what view-timeline does and doesn’t do. The lunatic creator of Web-Slinger.css relied on tech that wasn’t made for animations which run only when the user scrolls backwards.

This visualizer shows that no matter what options you choose for animation-range, the subject wants to complete its animation after it has crossed the viewport in the scrolling direction — which is exactly what we do not want to happen in this particular case.

Fortunately, our friendly neighborhood Bramus from the Chrome Developer Team has a cool demo showing how to detect scroll direction in CSS. Using the clever --scroll-direction CSS custom property Bramus made, we can ensure Spider Pig animates at the right time rather than on load. The trick is to control the appearance of .scroll-trigger-2 using a style query like this:

:root {
  animation: adjust-slide-index 3s steps(3, end), adjust-pos 1s;
  animation-timeline: scroll(root x);
}
@property --slide-index {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}

@keyframes adjust-slide-index {
  to {
    --slide-index: 3;
  }
}

.scroll-trigger-2  {
  display: none;
}

@container style(--scroll-direction: -1) and style(--slide-index: 0) {
  .scroll-trigger-2 {
    display: block;
  }
}

That style query means that the marker with the .scroll-trigger-2 class will not be rendered until we are on the previous slide and reach it by scrolling backward. Notice that we also introduced another variable named --slide-index, which is controlled by a three-second scroll-driven animation with three steps. It counts the slide we are on, and it is used because we want the user to swipe decisively to activate the dislike animation. We don’t want just any slight breeze to trigger a dislike.

When the swipe has been concluded, one more like (I’m superhuman)

As mentioned at the outset, measuring how many CSS-Tricks readers dislike Spider Pig versus how many have a soul is important. To capture this crucial stat, I’m using a third-party counter image as a background for the card underneath the Spider Pig card. It is third-party, but hopefully, it will always work because the website looks like it has survived since the dawn of the internet. I shouldn’t complain because the price is right. I chose the least 1990s-looking counter and used it like this:

@container style(--scroll-trigger-1: 1) {
  .result {
    background-image: url('https://counter6.optistats.ovh/private/freecounterstat.php?c=qbgw71kxx1stgsf5shmwrb2aflk5wecz');
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-position: center;
  }

  .counter-description::after {
    content: 'who like spider pig';
  }

  .scroll-trigger-2 {
    display: none;
  }
}

@container style(--scroll-trigger-2: 1) {
  .result {
    background-image: url('https://counter6.optistats.ovh/private/freecounterstat.php?c=abtwsn99snah6wq42nhnsmbp6pxbrwtj');
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-position: center;
  }

  .counter-description::after {
    content: 'who dislike spider pig';
  }

  .scroll-trigger-1 {
    display: none;
  }
}

Scrolls of wisdom: Lessons learned

This hack turned out more complex than I expected, mostly because of the complexity of using scroll-triggered animations that only run when you meet an element by scrolling backward which goes against assumptions made by the current API. That’s a good thing to know and understand. Still, it’s amazing how much power is hidden in the current spec. We can style things based on extremely specific scrolling behaviors if we believe in ourselves. The current API had to be hacked to unlock that power, but I wish we could do something like:

[class^="scroll-trigger-"] {
  view-timeline-axis: x;
  view-timeline-direction: backwards; /* <-- this is speculative. do not use! */
}

With an API like that allowing the swipe-right scroll trigger to behave the way I originally imagined, the Spider Pig swiper would not require hacking.

I dream of wider browser support for scroll-driven animations. But I hope to see the spec evolve to give us more flexibility to encourage designers to build nonlinear storytelling into the experiences they create. If not, once animation timelines land in more browsers, it might be time to make Web-Slinger.css more complete and production-ready, to make the more advanced scrolling use cases accessible to the average CSS user.


Web-Slinger.css: Across the Swiper-Verse originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

A Few Ways That Cloudways Makes Running This Site a Little Easier

Post pobrano z: A Few Ways That Cloudways Makes Running This Site a Little Easier

(This is a sponsored post.)

It’s probably no surprise to you that CSS-Tricks is (proudly) hosted on Cloudways, DigitalOcean’s managed hosting arm. Given both CSS-Tricks and Cloudways are part of DigitalOcean, it was just a matter of time before we’d come together this way. And here we are!

We were previously hosted on Flywheel which was a fairly boutique WordPress hosting provider until WP Engine purchased it years back. And, to be very honest and up-front, Flywheel served us extremely well. There reached a point when it became pretty clear that CSS-Tricks was simply too big for Flywheel to scale along. That might’ve led us to try out WP Engine in the absence of Cloudways… but it’s probably good that never came to fruition considering recent events.

Anyway, moving hosts always means at least a smidge of contest-switching. Different server names with different configurations with different user accounts with different controls.

We’re a pretty low-maintenance operation around here, so being on a fully managed host is a benefit because I see very little of the day-to-day nuance that happens on our server. The Cloudways team took care of all the heavy lifting of migrating us and making sure we were set up with everything we needed, from SFTP accounts and database access to a staging environment and deployment points.

Our development flow used to go something like this:

  • Fire up Local (Flywheel’s local development app)
  • Futz around with local development
  • Push to main
  • Let a CI/CD pipeline publish the changes

I know, ridiculously simple. But it was also riddled with errors because we didn’t always want to publish changes on push. There was a real human margin of error in there, especially when handling WordPress updates. We could have (and should have) had some sort of staging environment rather than blindly trusting what was working locally. But again, we’re kinduva a ragtag team despite the big corporate backing.

The flow now looks like this:

  • Fire up Local (we still use it!)
  • Futz around with local development
  • Push to main
  • Publish to staging
  • Publish to production

This is something we could have set up in Flywheel but was trivial with Cloudways. I gave up some automation for quality assurance’s sake. Switching environments in Cloudways is a single click and I like a little manual friction to feel like I have some control in the process. That might not scale well for large teams on an enterprise project, but that’s not really what Cloudways is all about — that’s why we have DigitalOcean!

See that baseline-status-widget branch in the dropdown? That’s a little feature I’m playing with (and will post about later). I like that GitHub is integrated directly into the Cloudways UI so I can experiment with it in whatever environment I want, even before merging it with either the staging or master branches. It makes testing a whole lot easier and way less error-prone than triggering auto-deployments in every which way.

Here’s another nicety: I get a good snapshot of the differences between my environments through Cloudways monitoring. For example, I was attempting to update our copy of the Gravity Forms plugin just this morning. It worked locally but triggered a fatal in staging. I went in and tried to sniff out what was up with the staging environment, so I headed to the Vulnerability Scanner and saw that staging was running an older version of WordPress compared to what was running locally and in production. (We don’t version control WordPress core, so that was an easy miss.)

I hypothesized that the newer version of Gravity Forms had a conflict with the older version of WordPress, and this made it ridiculously easy to test my assertion. Turns out that was correct and I was confident that pushing to production was safe and sound — which it was.

That little incident inspired me to share a little about what I’ve liked about Cloudways so far. You’ll notice that we don’t push our products too hard around here. Anytime you experience something delightful — whatever it is — is a good time to blog about it and this was clearly one of those times.

I’d be remiss if I didn’t mention that Cloudways is ideal for any size or type of WordPress site. It’s one of the few hosts that will let you BOYO cloud, so to speak, where you can hold your work on a cloud server (like a DigitalOcean droplet, for instance) and let Cloudways manage the hosting, giving you all the freedom to scale when needed on top of the benefits of having a managed host. So, if you need a fully managed, autoscaling hosting solution for WordPress like we do here at CSS-Tricks, Cloudways has you covered.


A Few Ways That Cloudways Makes Running This Site a Little Easier originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

Tight Mode: Why Browsers Produce Different Performance Results

Post pobrano z: Tight Mode: Why Browsers Produce Different Performance Results

I wrote a post for Smashing Magazine that was published today about this thing that Chrome and Safari have called “Tight Mode” and how it impacts page performance. I’d never heard the term until DebugBear’s Matt Zeunert mentioned it in a passing conversation, but it’s a not-so-new deal and yet there’s precious little documentation about it anywhere.

So, Matt shared a couple of resources with me and I used those to put some notes together that wound up becoming the article that was published. In short:

Tight Mode discriminates resources, taking anything and everything marked as High and Medium priority. Everything else is constrained and left on the outside, looking in until the body is firmly attached to the document, signaling that blocking scripts have been executed. It’s at that point that resources marked with Low priority are allowed in the door during the second phase of loading.

The implications are huge, as it means resources are not treated equally at face value. And yet the way Chrome and Safari approach it is wildly different, meaning the implications are wildly different depending on which browser is being evaluated. Firefox doesn’t enforce it, so we’re effectively looking at three distinct flavors of how resources are fetched and rendered on the page.

It’s no wonder web performance is a hard discipline when we have these moving targets. Sure, it’s great that we now have a consistent set of metrics for evaluating, diagnosing, and discussing performance in the form of Core Web Vitals — but those metrics will never be consistent from browser to browser when the way resources are accessed and prioritized varies.


Tight Mode: Why Browsers Produce Different Performance Results originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

The Importance of Investing in Soft Skills in the Age of AI

Post pobrano z: The Importance of Investing in Soft Skills in the Age of AI

I’ll set out my stall and let you know I am still an AI skeptic. Heck, I still wrap “AI” in quotes a lot of the time I talk about it. I am, however, skeptical of the present, rather than the future. I wouldn’t say I’m positive or even excited about where AI is going, but there’s an inevitability that in development circles, it will be further engrained in our work.

We joke in the industry that the suggestions that AI gives us are more often than not, terrible, but that will only improve in time. A good basis for that theory is how fast generative AI has improved with image and video generation. Sure, generated images still have that “shrink-wrapped” look about them, and generated images of people have extra… um… limbs, but consider how much generated AI images have improved, even in the last 12 months.

There’s also the case that VC money is seemingly exclusively being invested in AI, industry-wide. Pair that with a continuously turbulent tech recruitment situation, with endless major layoffs and even a skeptic like myself can see the writing on the wall with how our jobs as developers are going to be affected.

The biggest risk factor I can foresee is that if your sole responsibility is to write code, your job is almost certainly at risk. I don’t think this is an imminent risk in a lot of cases, but as generative AI improves its code output — just like it has for images and video — it’s only a matter of time before it becomes a redundancy risk for actual human developers.

Do I think this is right? Absolutely not. Do I think it’s time to panic? Not yet, but I do see a lot of value in evolving your skillset beyond writing code. I especially see the value in improving your soft skills.

What are soft skills?

A good way to think of soft skills is that they are life skills. Soft skills include:

  • communicating with others,
  • organizing yourself and others,
  • making decisions, and
  • adapting to difficult situations.

I believe so much in soft skills that I call them core skills and for the rest of this article, I’ll refer to them as core skills, to underline their importance.

The path to becoming a truly great developer is down to more than just coding. It comes down to how you approach everything else, like communication, giving and receiving feedback, finding a pragmatic solution, planning — and even thinking like a web developer.

I’ve been working with CSS for over 15 years at this point and a lot has changed in its capabilities. What hasn’t changed though, is the core skills — often called “soft skills” — that are required to push you to the next level. I’ve spent a large chunk of those 15 years as a consultant, helping organizations — both global corporations and small startups — write better CSS. In almost every single case, an improvement of the organization’s core skills was the overarching difference.

The main reason for this is a lot of the time, the organizations I worked with coded themselves into a corner. They’d done that because they just plowed through — Jira ticket after Jira ticket — rather than step back and question, “is our approach actually working?” By focusing on their team’s core skills, we were often — and very quickly — able to identify problem areas and come up with pragmatic solutions that were almost never development solutions. These solutions were instead:

  • Improving communication and collaboration between design and development teams
  • Reducing design “hand-off” and instead, making the web-based output the source of truth
  • Moving slowly and methodically to move fast
  • Putting a sharp focus on planning and collaboration between developers and designers, way in advance of production work being started
  • Changing the mindset of “plow on” to taking a step back, thoroughly evaluating the problem, and then developing a collaborative and by proxy, much simpler solution

Will improving my core skills actually help?

One thing AI cannot do — and (hopefully) never will be able to do — is be human. Core skills — especially communication skills — are very difficult for AI to recreate well because the way we communicate is uniquely human.

I’ve been doing this job a long time and something that’s certainly propelled my career is the fact I’ve always been versatile. Having a multifaceted skillset — like in my case, learning CSS and HTML to improve my design work — will only benefit you. It opens up other opportunities for you too, which is especially important with the way the tech industry currently is.

If you’re wondering how to get started on improving your core skills, I’ve got you. I produced a course called Complete CSS this year but it’s a slight rug-pull because it’s actually a core skills course that uses CSS as a context. You get to learn some iron-clad CSS skills alongside those core skills too, as a bonus. It’s definitely worth checking out if you are interested in developing your core skills, especially so if you receive a training budget from your employer.

Wrapping up

The main message I want to get across is developing your core skills is as important — if not more important — than keeping up to date with the latest CSS or JavaScript thing. It might be uncomfortable for you to do that, but trust me, being able to stand yourself out over AI is only going to be a good thing, and improving your core skills is a sure-fire way to do exactly that.


The Importance of Investing in Soft Skills in the Age of AI originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.