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#css

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Tag · #css
DAY 01Today MAY 13 · 20261 SUMMARIES
Kevin PowellDesign & Frontend

Bulletproof CSS Color Systems with contrast-color()

Use contrast-color() to auto-pick white or black text for any background, combined with private custom properties for fallbacks and color-mix() for dynamic hovers that adapt to light/dark modes.

Kevin Powell
DAY 02May 6, 2026 MAY 6 · 20261 SUMMARIES
Kevin PowellDesign & Frontend

Recreate CSS Battles 251-253 in 15min with Divs, Shadows, Borders

Kevin Powell solves CSS Battles 251-253 live under time pressure: stacked divs/pseudos (5:40, 100%), ring shadows (4:16, 99.9%), rotated border diamond + cap circles. Measure precisely, center with margin-inline:auto, use body/html pseudos for overlays.

Kevin Powell

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