<!DOCTYPE html>
<link rel="help" href="https://crbug.com/1058690">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<meta name="assert" content="A percent inset resolves against the available size.">
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div style="width: 100px; height: 100px; background: red;">
  <span style="position: relative; top: 100px; left: 100px;">
    <div style="width: 100px; height: 100px; background: green; position: relative; top: -100%; left: -100%;"></div>
  </span>
</div>