third_party/WebKit/LayoutTests/fast/css-generated-content/attr-content-dynamic.html

   1 <!DOCTYPE html>
   2 <style>
   3 #before::before, #after::after { content: attr(my-value) }
   4 </style>
   5 <p>You should see two PASSes below.</p>
   6 <div id="before">SS</div>
   7 <div id="after">PA</div>
   8 <script>
   9 document.body.offsetTop; // force layout
  10
  11 before.setAttribute("my-value", "PA");
  12 after.setAttribute("my-value", "SS");
  13 </script>