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“Tailwind breakpoints (sm: 640px, md: 768px, lg: 1024px, xl: 1280px, 2xl: 1536px) are Mobile-First min-width media queries. Unprefixed utilities apply to mobile screens (0px+), while prefixed variants override styles as screen width expands.”
Why Tailwind uses min-width queries and how to build fluid mobile-first layouts.
<div class="w-full text-center sm:text-left p-4 sm:p-8 md:p-12 lg:p-16 rounded-3xl bg-slate-900 text-white">
<h1 class="text-2xl sm:text-4xl md:text-5xl lg:text-6xl font-extrabold tracking-tight">
Mobile-First Responsive Typography
</h1>
</div>.text-center { text-align: center; }
@media (min-width: 640px) {
.sm\:text-left { text-align: left; }
.sm\:text-4xl { font-size: 2.25rem; }
}
@media (min-width: 1024px) {
.lg\:text-6xl { font-size: 3.75rem; }
}Design base mobile layout first (e.g. "flex-col text-sm p-4")
Add tablet breakpoint: "md:flex-row md:text-base md:p-6"
Add desktop layout: "lg:grid-cols-4 lg:p-8"
All breakpoint queries stack monotonically using "@media (min-width: ...)"
Mobile-first min-width styling results in smaller initial render trees on mobile devices and prevents media query cascade clashes.