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flexbox-patterns

Use when reviewing stylesheets, component styles, and responsive behavior related to Apply Flexbox best practices. Check the rendered layout across breakpoints and interaction states before proposing a fix.

skills/flexbox-patterns/SKILL.md

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# Apply Flexbox best practices

Flexbox is one of the most used CSS features, but its unintuitive default values (flex-shrink:1, min-width:auto) cause layout bugs that are hard to diagnose. Understanding the flex shorthand and the min-width:0 fix prevents the most common Flexbox breakage scenarios.

## Quick Reference

- Flexbox is for one-dimensional layouts (a row OR a column)
- Use flex: 1 1 0 (shorthand: flex:1) for equal-width items that fill space
- Add min-width: 0 to flex children when text overflow truncation doesn't work
- Use gap instead of margin for spacing between flex items

## Check

Review this CSS for common Flexbox mistakes: missing min-width:0 on text-containing flex children, using margin instead of gap for spacing, and improper flex shorthand usage.