Media Queries

Responsive Web Design Cheat Sheet

Covers mobile-first media queries, fluid layout units, responsive images with srcset, and core responsive design concepts.

What Are CSS Media Queries and How Do They Work?

A media query is a CSS conditional block that applies a set of styles only when the browser environment matches specified conditions, most commonly viewport wi…

What Are the Core Principles of Responsive Web Design?

Responsive design means building a single layout that adapts to any viewport using fluid grids, flexible images, and CSS media queries, rather than shipping se…

How Does CSS Grid grid-template-areas Work?

`grid-template-areas` lets you name regions of a CSS Grid layout as a visual ASCII-art string on the container, then assign each child to one of those named re…

What Are CSS Container Queries and How Do They Differ from Media Queries?

Container queries let an element style itself based on the size of its nearest containing ancestor rather than the size of the entire viewport, using `containe…

How Do CSS Custom Media Queries (@custom-media) Work?

CSS custom media queries let you define a named, reusable media condition once with @custom-media --name (condition), and then reference it by name across your…