Learn how to optimize your CSS code performance by minifying, combining, inlining, and preprocessing your CSS files, using CSS selectors, media queries, and responsive images, and leveraging ...

Implementing media queries enables developers to create responsive websites that adapt to a user’s screen size without requiring them to zoom in or out. To begin using media queries, you must first ...

css3-mediaqueries.js by Wouter van der Graaf is a JavaScript library to make IE 5+, Firefox 1+ and Safari 2 transparently parse, test and apply CSS3 Media Queries. Firefox 3.5+, Opera 7+, Safari 3+ ...

For example: if you enclose a whole media query in a comment intending to disable its rules, you'll probably find that those rules will end up enabled in non-media-query-supporting browsers.

While using JavaScript to load CSS might seem a bit strange, even if you use @media queries you’re still going to need some kind of polyfill (usually JavaScript-based) to handle those browsers ...