CSS containment is used for optimization and opening styling possibilities by isolating elements from the rest of the page. Different contain values (size, paint, layout, etc.) provide various benefits and tradeoffs.

On iOS, there is a setting for Text Size. I’ll do a video here for the current version of iOS (17.5.1) to be clear: As far as I ever knew, that controlled the text size on the OS itself and native apps. It didn’t effect websites. I think that’s largely true, but I just learned […]

Svelte is already quite lightweight and fast, but Svelte 5 still overs big improvements in fine-grained reactivity, meaning re-rendering as absolutely little as possible.

Support for the relative color syntax in CSS is across the board now (go interop!), so here we look at some basic (and still very useful) use cases, like applying alpha to a color you have on hand.

Native support for decorators is inevitable! It simplifies augmenting class methods, which can help with things like logging, memoization, debouncing, and dependency injection.

Out with slots, in with snippets.