```css .container { max-width: rem(800px); margin: 3rem auto 5rem; padding: 0 2rem; font-size @media (max-width: rem(800px)) { flex-direction: column; margin-top: 0.5rem; } } ``` It ignores `font-size` (with or without :, no difference). Mainly I'm using this for autocomplete. My code is here: https://github.com/subsetcss/parser/blob/master/src/index.ts#L42 walked declarations go from `padding` to `flex-direction`.