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Tips, Tricks, and Techniques on using Cascading Style Sheets.

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Caching Data in SvelteKit

My previous post was a broad overview of SvelteKit where we saw what a great tool it is for web development. This post will fork off what we did there and dive into every developer’s favorite topic: caching. So, be sure to give my last post a read if you haven’t already. The code for this post is available on GitHub, as well as a live demo. This...

AR, VR, and a Model for 3D in HTML

Tucked down somewhere in the Safari Technology Preview 161 release notes is a seemingly innocous line about support for a new HTML element and attribute: Added support for <model src> and honor <source type> attributes (257518@main) Anytime I see mention of some element I don’t recognize, my mind goes straight to Huh! New...

Animating CSS Grid (How To + Examples)

I’m pleased to shine a light on the fact that the CSS grid-template-rows and grid-template-columns properties are now animatable in all major web browsers! Well, CSS Grid has technically supported animations for a long time, as it’s baked right into the CSS Grid Layout Module Level 1 spec. But animating these grid properties only recently gained...

Getting Started With SvelteKit

SvelteKit is the latest of what I’d call next-gen application frameworks. It, of course, scaffolds an application for you, with the file-based routing, deployment, and server-side rendering that Next has done forever. But SvelteKit also supports nested layouts, server mutations that sync up the data on your page, and some other niceties we’ll get into....

More Real-World Uses for :has()

The :has() pseudo-class is, hands-down, my favorite new CSS feature. I know it is for many of you as well, at least those of you who took the State of CSS survey. The ability to write selectors upside down gives us more superpowers I’d never thought possible. I say “more superpowers” because there have already been a ton of really amazing clever...

How to Transition to Manifest V3 for Chrome Extensions

While I am not a regular Chrome extension programmer, I have certainly coded enough extensions and have a wide enough web development portfolio to know my way around the task. However, just recently, I had a client reject one of my extensions as I received feedback that my extension was “outdated”. As I was scrambling to figure out what was wrong,...

Solved With :has(): Vertical Spacing in Long-Form Text

If you’ve ever worked on sites with lots of long-form text — especially CMS sites where people can enter screeds of text in a WYSIWYG editor — you’ve likely had to write CSS to manage the vertical spacing between different typographic elements, like headings, paragraphs, lists and so on. It’s surprisingly tricky to get this right. And it’s one...

6 Common SVG Fails (and How to Fix Them)

Someone recently asked me how I approach debugging inline SVGs. Because it is part of the DOM, we can inspect any inline SVG in any browser DevTools. And because of that, we have the ability to scope things out and uncover any potential issues or opportunities to optimize the SVG. But sometimes, we can’t even see our SVGs at all. In those cases,...

:has is an unforgiving selector

A little thing happened on the way to publishing the CSS :has() selector to the ol’ Almanac. I had originally described :has() as a “forgiving” selector, the idea being that anything in its argument is evaluated, even if one or more of the items is invalid. /* Example: Do not use! */ article:has(h2, ul, ::-scoobydoo) { } See ::scoobydoo...

Faking Min Width on a Table Column

The good ol’ <table> tag is the most semantic HTML for showing tabular data. But I find it very hard to control how the table is presented, particularly column widths in a dynamic environment where you might not know how much content is going into each table cell. In some cases, one column is super wide while others are scrunched up. Other times,...

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