Emil KowalskiOne of the most underrated CSS properties.
Summary
Most people know clip-path as a way to trim an element into a circle or a triangle. Emil's point is that it is also an animation tool, and a well behaved one, because clipping has no effect on layout. Working mostly with inset, he builds comparison sliders, reveals and wipes that would otherwise need extra wrapper elements and overflow hidden. The result is hardware accelerated and needs less markup. After reading it you start noticing the property in interfaces everywhere.
View full writingGoes well with
emil-design-eng
The design-engineering house style behind Sonner and Vaul.
Emil's main skill. Mostly animation, with the UI-polish and component judgement that surrounds it: what to build, how far to push it, and when to stop.
npx skills add https://github.com/emilkowalski/skills
animate
Builds an animation from scratch, decisions in the order that matters.
Should it animate at all, what purpose, which tool, which properties, which curve and duration, how it interrupts, how it exits. Then writes the implementation.
npx skills add https://github.com/emilkowalski/skills --skill animate
review-animations
Reviews your motion strictly, against Emil's rules.
A production-critical pass over animation quality, timing and consistency in a diff. Pairs with improve-animations, which does the same for a whole codebase.
npx skills add https://github.com/emilkowalski/skills --skill review-animations
Emil Kowalski