third_party/WebKit/LayoutTests/fast/css/rem-calc-dynamic-scaling.html

   1 <html>
   2 <body>
   3 This is a test of dynamic rem unit scaling.  Changes to the root element's font size need to cause dependent elements in the document tree
   4 to update as well.
   5 <div style="font-size:10px">
   6 This text should be small.
   7 <div style="font-size:calc(0% + 1rem)">
   8 This text should match the root (and be 24px).
   9 </div>
  10 </div>
  11 <script>
  12 document.body.offsetWidth;
  13 document.documentElement.style.fontSize = '24px';
  14 </script>
  15 </body>
  16 </html>