<!DOCTYPE html>
<!-- Any copyright is dedicated to the Public Domain.
   - http://creativecommons.org/publicdomain/zero/1.0/ -->
<html>
<body>
  <picture>
    <source srcset="lime100x100.svg" type="image/svg+xml">
    <img src="red.png" width="100" height="100">
  </picture>
</body>
</html>
