Exploring CSS Customizations and the Nesting Revolution

In this episode of Syntax, Wes and Scott talk about proposals to CSS including @when, CSS Masonry, CSS Caret, ENV Vars, and Media Query Ranges.

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Show Notes

• 00:11 Welcome
• 00:58 Sponsor: Sentry
• 02:17 Sponsor: Sanity
• 03:32 CSS @when and @else
• CSS When and Else

@when media(width >= 400px) and media(pointer: fine) and supports(display: flex) { /* A */ } @else supports(caret-color: pink) and supports(background: double-rainbow()) { /* B */ } @else { /* C */ }

• 05:42 CSS Grid 3 Masonry
• CSS Grid

.grid { display: inline-grid; grid: masonry / repeat(3, 2ch); border: 1px solid; masonry-auto-flow: next; }

• David Desandro
• Rachel Andrew
• 09:00 CSS Caret
• CSS Caret
• 10:32 CSS Nesting
• CSS Nesting
• Syntax 343 CSS Nesting
• Postcss-preset-env
• 13:14 ENV Vars
• ENV Variables
• 14:58 Media Query Ranges
• MDN Media Queries @media (width < env(--small_bp)); @media (100px < width < 1000px);

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