CSS max()
CSS max() Function
A comparison function returning the largest value from a list, useful for responsive sizing with lower bounds.
技術的詳細
CSS max()s test viewport and device characteristics to conditionally apply styles. Level 4 features include range syntax (width >= 768px), prefers-color-scheme (dark mode), prefers-reduced-motion (accessibility), and hover capability detection. The mobile-first approach writes base styles for small screens and uses min-width queries for larger breakpoints. Container queries (@container) complement media queries by responding to parent element size rather than viewport size.
例
```css
/* Mobile-first: base styles for small screens */
.container { padding: 1rem; }
@media (min-width: 768px) {
.container { padding: 2rem; max-width: 720px; }
}
@media (min-width: 1024px) {
.container { max-width: 960px; }
}
```