Created PrismJS, the syntax highlighter powering countless dev sites, and Color.js, a JavaScript library for modern color manipulation. MIT PhD in usability who advises the W3C on web standards.
prefixfree. Break free from CSS prefix hell!
3.8kanimatable. One property, two values, endless possiblities
2.6kbliss. Blissful JavaScript
2.4kcss3patterns. The popular CSS3 patterns gallery, now on Github :)
1.5kstretchy. Form element autosizing, the way it should be
1.3kdabblet. An interactive CSS playground
827dpi. dpi love - Easily find the DPI/PPI of any screen
772multirange. A tiny polyfill for HTML5 multi-handle sliders
608style-observer. Run JS when a CSS property changes. Any CSS property.
540conic-gradient. Polyfill for conic-gradient() and repeating-conic-gradient()
484rety. Record typing on one or more editors and replay it at will, to simulate live coding
403parsel. A tiny, permissive CSS selector parser
397md-block. A custom element for rendering stylable (light DOM) Markdown
355regexplained. JavaScript
274chainvas. Make APIs suck less
263css.land. Hands on CSS demos
230cubic-bezier. Playground for CSS bezier-based timing functions
184rgba.php. Script for automatic generation of one pixel alpha-transparent images for non-RGBA browsers to easily emulate RGBA colors in backgrounds
178HTML5-Progress-polyfill. Polyfill for the HTML5 <progress> element
178markapp. Building apps by authoring HTML
133duoload. Simple, client-side comparison of website loading behavior
132play.csssecrets.io. CSS Secrets Book live demos
118talks. All my talks (move still in progress)
95incrementable. Increment length values in textfields
85blog. Content for my personal blog. Found a bug? Send a PR!
80corner-shape. Play with corner-shape before it’s implemented!
75StronglyTyped. A library for strongly typed properties & global variables in JavaScript
72css-colors. Share & convert CSS colors
64bluesky-likes. Flexible components for displaying Bluesky likes
56bubbly. [Unfinished] CSS speech bubbles made easy!
53whathecolor. JavaScript
48html-syntax-guidelines.
46forkgasm. Lea & Chris’ culinary adventures
33talks-list. Automatic talks list, generated from JSON. Unmaintained, use Mavo instead.
29dragula2. This is a modern rewrite of bevacqua/dragula that is actively maintained. Rewrite in progress, come back later.
17issue-closing. View issue closing stats for any repo!
15tweeplus. Longer tweets, no strings attached.
12bytesizematters. JavaScript
10blissful-hooks. Deep extensibility for all!
10