<!DOCTYPE html>
Tests paint invalidation of focus ring when child moves. Passes if the focus ring is updated to contain the yellow areas.
<div style="outline: auto; position: absolute; top: 100px; left: 100px; width: 300px; height: 20px; background-color: yellow">
  <div id="child" style="position: absolute; top: -50px; left: 200px; width: 20px; height: 300px; background-color: yellow"></div>
</div>