What is the CSS Media Query Generator?
Generate responsive breakpoint CSS for common screen sizes. Mobile-first or desktop-first syntax with instant copy.
Everything runs locally in your browser. Adjust the controls above, preview instantly, and copy clean, production-ready CSS — no account, no upload.
Using the CSS Media Query Generator
Everything lives in the panel at the top of this page. There is nothing to install — it all runs right here in your browser.
Choose mobile-first or desktop-first
Mobile-first uses min-width. Desktop-first uses max-width. Mobile-first produces smaller CSS and aligns with the progressive enhancement principle.
Select your breakpoints
Choose from common breakpoints (480px, 768px, 1024px, 1280px, 1536px) or enter custom values.
Copy the skeleton
The generated code is an empty breakpoint structure. Add your property overrides inside each media query block.
What the generated code looks like
Clean, production-ready CSS — no vendor bloat, no unnecessary declarations.
/* Mobile first: default styles apply to all screens */
.container {
padding: 16px;
font-size: 1rem;
}
/* Tablet: 768px and above */
@media (min-width: 768px) {
.container {
padding: 32px;
font-size: 1.0625rem;
}
}
/* Desktop: 1024px and above */
@media (min-width: 1024px) {
.container {
max-width: 1200px;
margin: 0 auto;
padding: 48px;
}
}Mobile-first (min-width) is the recommended approach. CSS is smaller because base styles apply to all widths without media queries. Overrides only add detail for larger screens.
Common mistakes & how to fix them
A few habits trip people up. Here is what to watch for — and the exact fix.
Mixing min-width and max-width creates overlapping ranges
Using both min-width: 768px and max-width: 767px for adjacent breakpoints creates a 1px gap or overlap depending on fractional device pixel ratios.
Fix: Pick one approach (mobile-first or desktop-first) and use it consistently. If you must combine them, use a range: @media (min-width: 768px) and (max-width: 1023px).
Pro tips for better results
Use logical pixels, not physical pixels
Device pixel ratio means a 4K display has a physical resolution of 3840px but reports a CSS width of 1920px. Media queries use logical (CSS) pixels, not physical pixels. No adjustment needed for high-DPI displays.
Container queries are now supported everywhere
Chrome 105+, Firefox 110+, and Safari 16+ all support @container queries. Container queries respond to parent element width rather than viewport width, enabling truly reusable components.
Frequently asked questions
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