<!DOCTYPE html>
<!-- Any copyright is dedicated to the Public Domain.
   - http://creativecommons.org/publicdomain/zero/1.0/ -->
<html>
  <head>
    <link rel="author" title="Corey Ford" href="mailto:cford@mozilla.com">
    <style>
      #scroll {
        height: 100px;
      }
      #contain {
        height: 20px;
        background-color: gray;
      }
      #sticky {
        position: relative;
        top: 10px;
        height: 10px;
        background-color: black;
      }
    </style>
  </head>
  <body>
    <div id="scroll">
      <div id="contain">
        <div id="sticky"></div>
      </div>
    </div>
  </body>
</html>