Tags: css

1115

sparkline

Tuesday, November 30th, 2021

Speakers | State of the Browser 2021

All the talks from this year’s State Of The Browser event are online, and they’re all worth watching.

I laughed out loud at multiple points during Heydon’s talk.

Sunday, November 28th, 2021

Modern CSS in a Nutshell - Cloud Four

I like this high-level view of the state of CSS today. There are two main takeaways:

  1. Custom properties, flexbox, and grid are game-changers.
  2. Pre- and post-processers are becoming less and less necessary.

This is exactly the direction we should be going in! More and more power from the native web technologies (while still remaining learnable), with less and less reliance on tooling. For CSS, the tools have been like polyfills that we can now start to remove.

Alas, while the same should be true of JavaScript (there’s so much you can do in native JavaScript now), people seem to have tied their entire identities to the tooling they use.

They could learn a thing or two from the trajectory of CSS: treat your frameworks as cattle, not pets.

My Custom CSS Reset

This CSS reset is pleasantly minimalist and a lot of thought has gone into each step. The bit about calculating line height is very intriguing!

Wednesday, November 24th, 2021

Faulty logic

I’m a fan of logical properties in CSS. As I wrote in the responsive design course on web.dev, they’re crucial for internationalisation.

Alaa Abd El-Rahim has written articles on CSS tricks about building multi-directional layouts and controlling layout in a multi-directional website. Not having to write separate stylesheets—or even separate rules—for different writing modes is great!

More than that though, I think understanding logical properties is the best way to truly understand CSS layout tools like grid and flexbox.

It’s like when you’re learning a new language. At some point your brain goes from translating from your mother tongue into the other language, and instead starts thinking in that other language. Likewise with CSS, as some point you want to stop translating “left” and “right” into “inline-start” and “inline-end” and instead start thinking in terms of inline and block dimensions.

As is so often the case with CSS, I think new features like these are easier to pick up if you’re new to the language. I had to unlearn using floats for layout and instead learn flexbox and grid. Someone learning layout from scatch can go straight to flexbox and grid without having to ditch the cognitive baggage of floats. Similarly, it’s going to take time for me to shed the baggage of directional properties and truly grok logical properties, but someone new to CSS can go straight to logical properties without passing through the directional stage.

Except we’re not quite there yet.

In order for logical properties to replace directional properties, they need to be implemented everywhere. Right now you can’t use logical properties inside a media query, for example:

@media (min-inline-size: 40em)

That wont’ work. You have to use the old-fashioned syntax:

@media (min-width: 40em)

Now you could rightly argue that in this instance we’re talking about the physical dimensions of the viewport. So maybe width and height make more sense than inline and block.

But then take a look at how the syntax for container queries is going to work. First you declare the axis that you want to be contained using the syntax from logical properties:

main {
  container-type: inline-size;
}

But then when you go to declare the actual container query, you have to use the corresponding directional property:

@container (min-width: 40em)

This won’t work:

@container (min-inline-size: 40em)

I kind of get why it won’t work: the syntax for container queries should match the syntax for media queries. But now the theory behind disallowing logical properties in media queries doesn’t hold up. When it comes to container queries, the physical layout of the viewport isn’t what matters.

I hope that both media queries and container queries will allow logical properties sooner rather than later. Until they fall in line, it’s impossible to make the jump fully to logical properties.

There are some other spots where logical properties haven’t been fully implemented yet, but I’m assuming that’s a matter of time. For example, in Firefox I can make a wide data table responsive by making its container side-swipeable on narrow screens:

.table-container {
  max-inline-size: 100%;
  overflow-inline: auto;
}

But overflow-inline and overflow-block aren’t supported in any other browsers. So I have to do this:

.table-container {
  max-inline-size: 100%;
  overflow-x: auto;
}

Frankly, mixing and matching logical properties with directional properties feels worse than not using logical properties at all. The inconsistency is icky. This feels old-fashioned but consistent:

.table-container {
  max-width: 100%;
  overflow-x: auto;
}

I don’t think there are any particular technical reasons why browsers haven’t implemented logical properties consistently. I suspect it’s more a matter of priorities. Fully implementing logical properties in a browser may seem like a nice-to-have bit of syntactic sugar while there are other more important web standard fish to fry.

But from the perspective of someone trying to use logical properties, the patchy rollout is frustrating.

Tuesday, November 23rd, 2021

On User Tracking and Industry Standards on Privacy | CSS-Tricks

Prompted by my post on tracking, Chris does some soul searching about his own use of tracking.

I’m interested not just in the ethical concerns and my long-time complacency with industry norms, but also as someone who very literally sells advertising.

He brings up the point that advertisers expect to know how many people opened a particular email and how many people clicked on a particular link. I’m sure that’s right, but it’s also beside the point: what matters is how the receiver of the email feels about having that information tracked. If they haven’t given you permission to do it, you can’t just assume they’re okay with it.

Saturday, October 23rd, 2021

What do I need to read to be a great at CSS? – Baldur Bjarnason

I like this approach to reading widely and staying up to date enough.

Sunday, September 26th, 2021

🧠 ct.css – Let’s take a look inside your `head`

I love a good bookmarklet, and Harry has made a very good bookmarklet indeed.

Drag ct.css to your browser bar and then press it whenever you’re on a site you want to check for optimising what’s in the head element.

Monday, September 20th, 2021

The Future of CSS: Cascade Layers (CSS @layer) – Bram.us

This is a really in-depth explanation from Bramus of the upcoming @layer rules in CSS, from the brilliant minds of Miriam, fantasai and Tab.

Basically, you’ll be able to scope styles, and you get to define the context for that scoping. So all those CSS-in-JS folks who don’t appreciate the cascade will have a mechanism to get encapsulated styles.

I can see this being very handy for big complex codebases with lots of people on the team.

New principle: Do not design around third-party tools unless it actually breaks the Web · Issue #335 · w3ctag/design-principles

There’s a really interesting discussion here, kicked off by Lea, about balancing long-term standards with short-term pragmatism. Specifically, it’s about naming things.

Naming things is hard. Naming things in standards, doubly so.

Tuesday, September 14th, 2021

Benjamin Parry~ Writing ~ Engineering a better design test ~ @benjaminparry

It sometimes feels like we end up testing the limitations of our tools rather than the content and design itself.

What Benjamin found—and I heartily agree—is that HTML prototypes give you the most bang for your buck:

At the point of preparing for usability testing, it seemed ludicrous to move to any prototyping material other than the one we were already building in. The bedrock of the web: HTML, CSS and Javascript.

Designing Beautiful Shadows in CSS

This is a great tutorial—I just love the interactive parts that really help make things click.

Monday, September 13th, 2021

Stakeholders of styling

When I wrote about the new accent-color property in CSS, I pondered how much control a web developer should have over styling form controls:

Who are we to make that decision? Shouldn’t the user’s choice take primacy over our choices?

But then again, where do we draw the line? We’re allowed over-ride link colours. We’re allowed over-ride font choices.

Ultimately, I came down on the side of granting authors more control:

If developers don’t get a standardised way to customise native form controls, they’ll just recreate their own over-engineered versions.

This question of “who gets to decide?” used to be much more prevelant in the early days of the web. One way to think about this is that there are three stakeholders involved in the presentation of a web page:

  1. The author of the page. “Author” is spec-speak for designer or developer.
  2. The user.
  3. The browser, or user agent. A piece of software tries to balance the needs of both author and user. But, as the name implies, the user takes precedence.

These days we tend to think of web design a single-stakeholder undertaking. The author decides how something should be presented and then executes that decision using CSS.

But as Eric once said, every line of you CSS you write is a suggestion to the browser. That’s not how we think about CSS though. We think of CSS like a series of instructions rather than suggestions. Never mind respecting the user’s preferences; one of the first things we do is reset all the user agent’s styles.

In the early days of the web, more consideration was given to the idea of style suggestions rather than instructions. Heck, users could always over-ride any of your suggestions with their own user stylesheet. These days, users would need to install a browser extension to do the same thing.

The first proposal for CSS had a concept called “influence”:

h2.font.size = 20pt 40%

Here, the requested influence is reduced to 40%. If a style sheet later in the cascade also requests influence over h2.font.size, up to 60% can be granted. When the document is rendered, a weighted average of the two requests is calculated, and the final font size is determined.

I think the only remnant of “influence” left in CSS is accidental. It’s in the specificity of selectors …and the !important declaration.

I think it’s a shame that user stylesheets are no longer a thing. But I get why they were dropped from browsers. They date from a time when it was mostly nerds using the web, before “regular folks” came on board. I understand why it became a little-used feature, suitable for being dropped. But the principle of it still rankles slightly.

But in recent years there has been a slight return to the multi-stakeholder concept of styling websites. Thanks to prefers-reduced-motion and prefers-color-scheme, a responsible author can choose to bow to the wishes of the user.

I was reminded of this when I added a dark mode to my website:

Y’know, when I first heard about Apple adding dark mode to their OS—and also to CSS—I thought, “Oh, great, Apple are making shit up again!” But then I realised that, like user style sheets, this is one more reminder to designers and developers that they don’t get the last word—users do.

Thursday, September 9th, 2021

Accent all areas

Whenever a new version of Chrome comes out, there’s an accompanying blog post listing what’s new. Chrome 93 just came out and, sure enough, Pete has written a blog post about it.

But what I think is the most exciting addition to the browser isn’t listed.

What is this feature that’s got me so excited?

Okay, I’ve probably oversold it now because actually, it looks like a rather small trivial addition. It’s the accent-color property in CSS.

Up until now, accent colour was controlled by the operating system. If you’re on a Mac, go to “System Preferences” and then “General”. There you’ll see an option to change your accent colour. Try picking a different colour. You’ll see that change cascade down into the other form fields in that preference pane: checkboxes, radio buttons, and dropdowns.

Your choice will also cascade down into web pages. Any web page that uses native checkboxes, radio buttons and other interface elements will inherit that colour.

This is how interface elements are supposed to work. The browser inherits the look’n’feel of the inputs from the operating system.

That’s the theory anyway. In practice, form elements—such as dropdowns—can look different from browser to browser, something that shouldn’t be happening if the browsers are all inheriting from the operating system.

Anyway, it’s probably this supposed separation of responsibility between browser and operating system which has led to the current situation with form fields and CSS. Authors can style form fields up to a point, but there’s always a line that you don’t get to cross.

The accent colour of a selected radio button or a checkbox has historically been on the other side of that line. You either had to accept that you couldn’t change the colour, or you had to make your own checkbox or radio button interface. You could use CSS to hide the native element and replace it with an image instead.

That feels a bit over-engineered and frankly kind of hacky. It reminds me of the bad old days of image replacement for text before we had web fonts.

Now, with the accent-color property in CSS, authors can over-ride the choice that the user has set at the operating system level.

On the one hand, this doesn’t feel great to me. Who are we to make that decision? Shouldn’t the user’s choice take primacy over our choices?

But then again, where do we draw the line? We’re allowed over-ride link colours. We’re allowed over-ride font choices.

Ultimately I think it’s a good thing that authors can now specify an accent colour. What makes me think that is the behaviour that authors have shown if they don’t have this ability—they do it anyway, and in a hackier manner. This is why I think the work of the Open UI group is so important. If developers don’t get a standardised way to customise native form controls, they’ll just recreate their own over-engineered versions.

The purpose of Open UI to the web platform is to allow web developers to style and extend built-in web UI controls, such as select dropdowns, checkboxes, radio buttons, and date/color pickers.

Trying to stop developers from styling checkboxes and radio buttons is like trying to stop teenagers from having sex. You might as well accept that it’s going to happen and give them contraception so they can at least do it safely.

So I welcome this new CSS condom.

You can see accent-color in action in this demo. Change the value of the accent-color property to see the form fields update:

:root {
  accent-color: rebeccapurple;
}

Applying it at the document level like that will make it universal, but you can also use the property on an element-by-element basis using whatever selector you want.

That demo works in Chrome and Edge 93, the current release. It also works in Firefox 92, which literally just landed (like as I was writing this blog post, support for accent-color magically arrived!).

As for Safari, well, who knows? If Apple published a roadmap, then developers would have a clue when to expect a property like this to land. But we mere mortals cannot be trusted with such important hush-hush information.

In the meantime, keep an eye on Can I Use. And lack of support on one browser is no reason not to use accent-color anyway. It’s a progressive enhancement. Add it to your CSS today and it will work in more browsers in the future.

Can we have custom media queries, please?

I knew that custom properties don’t work in media queries but I had no idea that there was such a thing as custom media queries, which effectively do the same thing.

But this is not implemented in any browser. Boo! This would be so useful! If browser makers can overcame the technical hurdles with container queries, I’m sure they can deliver custom media queries.

Tuesday, September 7th, 2021

Using the platform

Elise Hein documents what it was like to build a website (or web app, if you prefer) the stackless way:

  • use custom elements (for modular HTML without frameworks)
  • use the in-browser package manager (for JavaScript packages without build tools)
  • match pages with files (to avoid routing and simplify architecture)
  • stick to standards (to avoid obsolescence and framework fatigue)

Her conclusions are similar to my own: ES6 modules mean you can kiss your bundler goodbye; web components are a mixed bag—it’s frustrating that Apple are refusing to allow native elements to be extended. Interestingly, Elise feels that a CSS preprocessor is still needed for her because she wants to be able to nest selectors …but even that’s on its way now!

Perhaps we might get to the stage where it isn’t an automatic default to assume you’ll need bundling, concatenation, transpiling, preprocessing, and all those other tasks that we’ve become dependent on build tools for.

I have a special disdain for beginner JavaScript tutorials that have you run create-react-app as the first step, and this exercise has only strengthened my conviction that every beginner programmer should get to grips with HTML, CSS and vanilla JS before delving into frameworks. Features native to the web are what all frameworks share, and knowing the platform makes for a stronger foundation in the face of change.

Saturday, August 21st, 2021

Scope Proposal & Explainer

This detailed proposal from Miriam for scoping CSS is well worth reading—it makes a lot of sense to me.

Tuesday, August 17th, 2021

Dog tired.

Dog tired.

Tuesday, July 6th, 2021

CSS Anchored Positioning

An interesting proposal for defining how one element could be “anchored” to another, and how that positioning could be expressed declaratively instead of having to write a whole load of JavaScript. Melanie’s looking for use cases so share ‘em if you have ‘em.

Personally, I’m not convinced that a new element is needed but I’m open to the suggestion.

Thursday, July 1st, 2021

Diana Ashktorab

This is my new favourite indie web site (super performant and responsive too).

Friday, June 25th, 2021

Organize your CSS declarations alphabetically – Eric Bailey

Until there is movement on developers taking CSS more seriously and understanding its full capabilities, we are caught in an awkward loop where introducing too much complexity in your project’s CSS will do more harm than good.