<!DOCTYPE html> <html> <head> <title>CSS 2.1 Test Suite: :first-line</title> <link rel="author" title="Boris Zbarsky" href="mailto:bzbarsky@mit.edu" /> <link rel="author" title="Mozilla Corporation" href="http://mozilla.com/" /> <link rel="help" href="http://www.w3.org/TR/CSS21/selector.html#first-line"/> <meta name="flags" content="" /> <style> div, p { background: green; } div::first-line, p::first-line { background-color: red; } span.one { background: inherit; } span.two { background-color: inherit; } </style> </head> <body> <div><p><span class="one">One</span><span class="two">Two</span></p></div> </body>