I’ve been playing with a combination of new CSS features that, together, form a really nice dynamic theming system. This technique creates themed components with shadows in light mode that swap out to glowing borders in dark mode, and text that’s always readable against its dynamic background color. All in CSS. Available in all modern browsers as of May 2026 🥳.
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Web components have been around for quite a while, but it feels like they’re having a bit of a moment right now.
CodeMirror is a code editor component for the web. It can be used in websites to implement a text input field with support for many editing features, and has a rich programming interface to allow further extension.