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* A website about making websites: https://css-tricks.com Most posts brought to you by @geoffgraham.me

CSS-Tricks
CSS-TricksSep 3, 2026
Quick Hit #178
Chrome 155 (Dev) implements margin-trim, following Safari.
chromeCSS
CSS-Tricks
CSS-TricksSep 2, 2026
Quick Hit #177
Firefox 155 implements progress(), now Baseline.
CSSfirefox
CSS-Tricks
CSS-TricksSep 1, 2026
Quick Hit #176
Firefox 155 ships alpha() and advanced attr(), which Chrome also supports (Safari to follow soon).
alpha()attr()
CSS-Tricks
CSS-TricksAug 31, 2026
Let’s Use the Emergent CSS random() Function in all the Browsers
The journey to create a polyfill for the upcoming CSS random() function that works in all browsers.
CSS functionspolyfill
CSS-Tricks
CSS-TricksAug 31, 2026
What’s !important #18: , Syntax ::highlight()ing, named-feature(), and More
Well, that’s a wrap. No, not a flex-wrap, but rather today marks a new day, week, month, season, aaaand new edition of What’s important (#18), bringing you the best content that developers have produced over the last couple of weeks or so.
newsArticles
CSS-Tricks
CSS-TricksAug 28, 2026
Quick Hit #175
Safari TP 251 trials comma-separated @container queries in addition to popover=hint.
container-queriesCSS
CSS-Tricks
CSS-TricksAug 28, 2026
Quick Hit #174
Safari TP 251 trials corner-shape, object-view-box, at-rule(), ident(), inherit(), random(), and random-item().
CSSsafari
CSS-Tricks
CSS-TricksAug 27, 2026
Creating Web Widgets Using the Document Picture-in-Picture API
The general idea is that we create a Document Picture-in-Picture window (DPIP window), and then we put HTML, CSS, and JavaScript into it.
JavaScriptpicture-in-picture
CSS-Tricks
CSS-TricksAug 25, 2026
Quick Hit #173
Chrome 152 ships the autocorrect HTML attribute, making it Baseline, and the alpha() CSS function (Safari and Firefox are to follow shortly).
alpha()autocorrect
CSS-Tricks
CSS-TricksAug 25, 2026
MicroLighter: Syntax Highlighter
Syntax highlighting for code blocks without the complicated markup, spans, classes, and bloated JavaScript, courtesy of Uncle Dave.
custom highlight apiresource
CSS-Tricks
CSS-TricksAug 21, 2026
Resolved: CSS Class Prefix Selector
A newly resolved proposal would allow us to select classes that are a prefix for variations with a wildcard, like .prefix-*.
selectorsLinks
CSS-Tricks
CSS-TricksAug 19, 2026
CSS Navigation Matching, Early Days
Apply a style when someone navigates from one specific page to another. The idea being it'd make the sources for cross-document view transitions declarative in CSS rather than managing that stuff in JavaScript.
css navigationview transitions