content-visibility CSS property explained by Surma and Jake.
A detailed look at the color-scheme property that allows developers to define which color chemes are defined in a website
How to write a configurable component class that controls an element's aspect-ratio by specifying some custom variables.
A clever CSS rule combining
:placeholder-shownto show validation state of non-empty input elements.
Elements with overflow: hidden are scroll containers and can be scrolled programmatically.