<!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="dom" />
    <style>
      div { color: green }
      div::first-line { color: red }
    </style>
  </head>
  <body>
    <div>
      <span class="some value" style="float: left">
        This should be green
      </span>
    </div>
  </body>
</html>