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.
This is a great tutorial—I just love the interactive parts that really help make things click.
This detailed proposal from Miriam for scoping CSS is well worth reading—it makes a lot of sense to me.
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.
CSS-in-JS can have a noticeable impact on your webpage. Mainly for low-end devices and regions with a slower internet connection or more expensive data. So maybe we should think better about what and how we use our tooling. Great developer experience shouldn’t come at the expense of the user experience.
This is supposed to be a defence of utility classes …but it’s actually a great explanation of why classes in general are a great mechanism for styling.
I don’t think anyone has ever seriously suggested using inline styles—the actual disagreement is about how ludicrously rigid and wasteful the class names dictated by something like Tailwind are. When people criticise those classes they aren’t advocating for inline styles—they’re advocating for better class names and making more use of the power of the class selector in CSS, not less.
Anyway, if you removed every instance of the word “utility” from this article, it would still work.
In a break with Betteridge’s law, I think the answer here is “yes.”
The point of this post is to show how nicely container queries can play with web components, but I want to also point out how nice the design of the web component is here: instead of just using an empty custom element, Max uses progressive enhancement to elevate the markup within the custom element.
This would be such a great addition to CSS—a parent/ancestor selector!
With the combined might of :has(), :not(), nth-child(), and calc(), CSS has become a powerful language for specifying rules to account for all kinds of situations.
The more I consume content in reading apps, the more I am reminded of the importance and the power of progressive enhancement as a strategy to create resilient and malleable experiences that work for everyone, regardless of how they choose to consume our content.
Top stuff from Sara here!
We have a tendency to always make an assumption about how our readers are reading our content—probably in the browser, with our fancy styles applied to it. But if we make a habit out of thinking about the Web in layers and CSS as an enhancement on top of the content layer, then we can start optimizing and enhancing our users’ reading experiences regardless of their context.
Thinking about the different ways in which users access the Web only shines light on the importance of a progressively enhanced approach to building for the Web. The more we think about the Web in layers and try to improve the experience of one layer before moving to the next, the more resilient experiences we can create. That’s what the essence of progressive enhancement is about.
Collection of common CSS mistakes, and how to fix them.
I like the way this is organised: it’s like “code smells” for CSS. Some of them will probably be familiar, in which case, you can dive in and find out what’s going on.
I really like the idea of a shared convention for styling web components with custom properties—feels like BEM meets microformats.
Oh, this is smart! You can’t target pseudo-elements in JavaScript, but you can use custom properties as a proxy instead.
Robin makes a good point here about using dark mode thinking as a way to uncover any assumptions you might have unwittingly baked into your design:
Given its recent popularity, you might believe dark mode is a fad. But from a design perspective, dark mode is exceptionally useful. That’s because a big part of design is about building relationships between colors. And so implementing dark mode essentially forced everyone on the team to think long, hard, and consistently about our front-end design components. In short, dark mode helped our design system not only look good, but make sense.
So even if you don’t actually implement dark mode, acting as though it’s there will give you a solid base to build in.
I did something similar with the back end of Huffduffer and The Session—from day one, I built them as though the interface would be available in multiple languages. I never implemented multi-language support, but just the awareness of it saved me from baking in any shortcuts or assumptions, and enforced a good model/view/controller separation.
For most front-end codebases, the design of your color system shows you where your radioactive styles are. It shows you how things are tied together, and what depends on what.
A thorough deep dive into generated content in CSS.
A minimal style sheet that applies some simple rules to HTML elements so you can take a regular web page and drop in this CSS to spruce it up a bit.
While a handful of form controls can be easily styled by CSS, like the button element, most form controls fall into a bucket of either requiring hacky CSS or are still unable to be styled at all by CSS.
Despite form controls no longer taking a style or technical dependency on the operating system and using modern rendering technology from the browser, developers are still unable to style some of the most used form control elements such as
select. The root of this problem lies in the way the specification was originally written for form controls back in 1995.
Stephanie goes back in time to tell the history of form controls on the web, and how that history has led to our current frustrations:
The current state of working with controls on the modern web is that countless developer hours are being lost to rewriting controls from scratch, as custom elements due to a lack of flexibility in customizability and extensibility of native form controls. This is a massive gap in the web platform and has been for years. Finally, something is being done about it.
Amen!
A handy tool for getting an overview of your site’s CSS:
CSS Stats provides analytics and visualizations for your stylesheets. This information can be used to improve consistency in your design, track performance of your app, and diagnose complex areas before it snowballs out of control.
I think this is quite beautiful—no need to view source; the style sheet is already in the document.
The “Adjust CSS” slider on this delightful homepage is an effective (and cute) illustration of progressive enhancement in action.