Relative colors is a fairly new CSS feature, but browser support is already up to 85%. Kevin Powell shows how to use it in this video.

A collection of 600 CSS-only animations.

The Builderius team released an early version of their own CSS framework, which is built into the builder or can be used alone.

This site is an example of CSS animation. It it uses clip path polygons to create animal shapes. Pretty cool example of what can be done with some of the emerging CSS animation support and things like polygons. Web kit browsers have full support (for polygons), it’s limited in Firefox. There is a how it’s made page that describes the technique.

New simplified syntax for media queries already at about 90% browser support.

From Kevin Powell’s podcast, his musings on the rate of adoption of different CSS features.

Here are 8 CSS and JavaScript Snippets for Adding Reveal Effects.

A good tutorial on CSS Subgrid and how to use it.

Matcha.css is a semantic CSS library that provides styling based on the element names, rather than classes. These types of libraries are good for providing default styling for HTML for simple sites.