# removed_at_rule

Kapi left out an @ rule it doesn't allow. Looks may use @media for width, contrast and motion.

- Severity: **Note**. It doesn't stop publishing.

## How to fix it

A look uses `@media` for width, contrast and reduced motion, and `@keyframes` inside `@media (prefers-reduced-motion: no-preference)`. For the dark theme, start a rule with `.dark`. A designed block may also use `@supports`, `@container` and `@layer`.

[Looks](https://docs.kapiworks.com/build/looks) and [Designed blocks](https://docs.kapiworks.com/build/pages) give each format in full, and [What Kapi says](https://docs.kapiworks.com/build/pages#what-kapi-says) lists every finding.