Post

@webdevs.firefox.com

When and how CSS custom property values are calculated might not be what you expect, and it has a big impact on your styles…

10/9/26, 1:22 pm26 reposts84 likes

Omg

It makes complete sense, but never, ever have I thought of adding sibling-index() in a custom property 😅 Nice!

Firefox for Web Developers

@webdevs.firefox.com

10 Sept

This video came about because someone was making a circle of elements using rotate, then counter-rotating the first child within each of those (so the text was always straight). Because the property was unregistered, the counter-rotate wasn't working.