:focus pseudo-classDaniel GlazmanIan HicksonCSS 3 Module W3C Selectors Next :target pseudo-class Previous :active pseudo-class on controls Test # 31 of 303 Testing :focus pseudo-class ID 20 Date 2001-11-03 Revision 1.1 User interaction is required for this test.
The background color of anchors
in this page should turn to green when they have the
focus.
a:focus { background-color : lime }
<p xmlns="http://www.w3.org/1999/xhtml">The background color of <a href="#foo">anchors</a>
in this page should turn <a href="#foo">to green</a> when they have the
<a href="#foo">focus</a>.</p>