layout/reftests/high-contrast/semi-transparent-overlay.html

   1 <!doctype html>
   2 <style>
   3 .container {
   4   position: relative;
   5 }
   6 a {
   7   position: absolute;
   8   inset: 0;
   9   background-color: rgba(0, 0, 0, .2);
  10 }
  11 </style>
  12 <div class="container">
  13   <a href="#"></a>
  14   Some text that you should be able to read.
  15 </div>