layout/reftests/first-letter/dynamic-5.html

   1 <!DOCTYPE html>
   2 <style>
   3 fieldset::first-letter {
   4   color: red;
   5 }
   6 fieldset.f::first-letter {
   7   color: green;
   8 }
   9 </style>
  10 <fieldset>Text</fieldset>
  11 <script>
  12 window.onload = function() {
  13   document.querySelector('fieldset').classList.add('f');
  14 }
  15 </script>