Example of a media query in a link element

Resize your browser window to see the effect of the media query. The paragraphs are green and normal by default, but turn bold red when the width is at least 480 pixels. The heading (an h1) doesn't change because there isn't any CSS saying it should.

View the HTML source to see the media query that is part of the link element. See, too, the comments in the two style sheets the page uses: base.css and styles-480.css.