Media queries

Media Queries is a module of CSS that defines expressions allowing to tailor presentations to a specific range of output devices without changing the content itself.

參考

At-rules

指南

Using media queries (en-US)

Presents what media queries are doing and explains the possible expressions.

Testing media queries

Explains how to test a media query programmatically, from JavaScript.

規範

Specification
Media Queries Level 4
CSS Conditional Rules Module Level 3