Danila Fedorin’s article about unique UX features in blogs is fun. Here’s some extra thoughts, resources, and opinions.

Having a named block of styles to apply in CSS can be useful, and newfangled Style Queries are pretty close to that. We look at one use case here, how Sass did mixins better, and hope for a native solution.

CSS allows setting different overflow behaviors for x and y directions. It doesn’t actually work with the `hidden` value, but it does with `clip`!

The navigation in this game works with the arrow keys, which is made possible with scroll driven animations, faked collision detection, and maintaining state with CSS custom properties.

Polyfill.io recently served malicious code, redirecting users to inappropriate sites. Subresource Integrity (SRI) can help prevent such issues by verifying script integrity.

The website has the most control, since that’s what applies the CSS. But browsers also have a Dark/Light/System setting, and that can fall through to the OS/Device.