92: CSS if() and custom functions

Welcome to the CSS Podcast featuring Una and Bramus as your guides, your co-hosts, and your CSS best friends.

In this episode, we dig into two very powerful CSS features: inline conditionals with the if() function, and custom functions.

(Originally aired: October 13, 2025)

Resources:
CSS if() function specification → https://goo.gle/3IBChWo
Article on if() by Una → https://goo.gle/4nUxIp2
Article on if() by Lea Verou → https://goo.gle/4nt2UvS
CSS mixins specification → https://goo.gle/48H8SEH
Article on @function by Una → https://goo.gle/48H99rd
Article on @function and if() by Bramus → https://goo.gle/46qPbzy
The CSS Space Toggle by Chris Coyier → https://goo.gle/4874qio

Speakers:
Una Kravets (co-host)
Twitter | Instagram | YouTube
Making the web more colorful ✨🎨 Web DevRel @googlechrome Unicorn face host of @toolsday & Designing in the Browser 🎬

Bramus Van Damme (co-host)
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@GoogleChrome CSS DevRel; @CSSWG; Scuba Diver 🤿