src/third_party/WebKit/LayoutTests/w3c/web-platform-tests/custom-elements/registering-custom-elements/unresolved-element-pseudoclass/unresolved-element-pseudoclass-css-test-type-extension.html

   1 <!DOCTYPE html>
   2 <html>
   3 <title>The :unresolved pseudoclass matching type extension</title>
   4 <link rel="author" title="Aleksei Yu. Semenov" href="mailto:a.semenov@unipro.ru">
   5 <meta name="assert" content="The :unresolved pseudoclass must match all custom elements whose created callback has not yet been invoked">
   6 <link rel="help" href="http://www.w3.org/TR/custom-elements/#unresolved-element-pseudoclass">
   7 <link rel="match" href="unresolved-element-pseudoclass-css-test-type-extension-ref.html">
   8 <style>
   9     :unresolved {
  10         background-color: red;
  11     }
  12     body {
  13         background-color: white;
  14     }
  15 </style>
  16 <body>
  17     <p>Test passes if x-element background below is red</p>
  18     <a is="x-element">
  19         x-element
  20     </a>
  21 </body>
  22 </html>
  23