third_party/WebKit/LayoutTests/fast/css-generated-content/shadow-host-context-pseudo-class.html

   1 <!DOCTYPE html>
   2 <body class=shadow>
   3 <div id="host">HOST</div>
   4 </body>
   5 <script>
   6 var host = document.getElementById('host');
   7 var root = host.createShadowRoot();
   8 root.innerHTML = '\
   9 <style>\
  10   :host-context(body.shadow)::before { content: "before shadow root:"; }\
  11   :host-context(body.light)::before { content: "this should not appear:"; }\
  12 </style>\
  13 <span>SHADOW</span>';
  14 </script>