responsive-design
Installation
SKILL.md
Responsive Design
Mobile-First Breakpoints
/* Base: Mobile (0-639px) - no media query needed */
/* sm: Large phones / Small tablets */
@media (min-width: 640px) { }
/* md: Tablets */
@media (min-width: 768px) { }
/* lg: Small laptops */
@media (min-width: 1024px) { }
/* xl: Desktops */
@media (min-width: 1280px) { }