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.
WordPress 7.0 supports :hover, :focus, :focus-visible and :active inside theme.json for blocks and their variations. What that replaces, how the JSON looks, and the limits worth knowing before you refactor.
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.
The Smashing Magazine wallpaper set for March 2026, including the Cascade Style Sheet design, plus the add_image_size code I use so high-res art does not slow down a WordPress theme.
WordPress 7.0 ships a native Breadcrumbs block, so the plugin can go. Two filters, block_core_breadcrumbs_items and block_core_breadcrumbs_post_type_settings, let you rewrite the trail and pick which taxonomy path wins when a post sits in several terms.
Mobile menus in WordPress 7.0 are template parts you edit in the Site Editor. This covers the navigation-overlay area, the theme.json registration, the close block you should add yourself, and the full-screen-only limit in this first release.
Interop 2026 sets the browser targets for the year. A look at the modern CSS features behind it: style queries with =, declarative dialogs via the Invoker Commands API, the :heading pseudo-class in Safari TP, and middle truncation without JavaScript.
Ahmad Wael on why the Tailwind components vs utilities split is mostly semantic, and how the @utility directive keeps CSS flat without extra layers or specificity fights.
WordPress.com built its new AI Assistant directly into the block editor and Media Library. It edits blocks and generates images with Google’s Gemini models, though full layout control needs a Block Theme.
WordPress sites carry more digital weight than they need. This post covers dark-first themes, lighter image formats like AVIF, and trimming the “digital fat” that slows sites down and drains batteries.