Chromium made the native select element styleable. This walks through appearance: base-select, the ::picker pseudo-element, sibling-index() for per-option maths, and the anchor positioning that makes a radial picker possible, without giving up keyboard support.
A pass through the CSS landing in browsers now: random() and random-item(), clip-path folded corners, the containing-block catch in anchor positioning, and tabular-nums for WooCommerce dashboards that refuse to sit still.
Moment.js is in maintenance mode and still costs you bundle size. The JS Temporal API is native, immutable and Stage 4, so this walks through creating dates, arithmetic, Intl formatting and a time zone refactor in a WooCommerce extension.
SmashingConf Amsterdam runs in April 2026 at the Pathé Tuschinski. What pulled me in is the live-work format: speakers working through CSS and accessibility problems on stage instead of walking an audience through finished slides.
Chromium ships corner-shape, so beveled and scooped corners no longer need clip-path or SVG masks. What each value does, how it pairs with border-radius, and how to ship it behind @supports while Firefox and Safari get plain rounded corners.
Magic numbers like z-index: 99999 are guesses. How I set up z-index tokens in CSS variables, pair a modal with its backdrop using calc(), and use isolation to keep a component’s layering inside the component.
RHF and Zod handle flat CRUD forms well, but branching logic leaks across the schema, the state and the JSX. Where SurveyJS keeps those rules instead, and how to pick between the two.
Five ways to target the root element in CSS: the plain html selector, :root, :scope, the top-level nesting ampersand, and structural tricks that can only match html. Which ones belong in production, and how their specificity differs.
Bookmarklets still solve small browser problems faster than installing an extension. How to wrap one in an IIFE, why you should URL-encode it, editing the CSSOM instead of injecting a style tag, and what Content Security Policy does to all of it.
Popover API and Dialog API solve different problems: one is for light non-modal UI, the other for true modals that block the page. This post breaks down when to use each, with working code.