dynamic-height-1.xhtml

Enable keyboard shortcuts

<?xml version="1.0"?>

<?xml-stylesheet href="chrome://global/skin/global.css"?>

<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"

	xmlns:html="http://www.w3.org/1999/xhtml"

	onload="onLoad();">

  <script type="application/javascript">

<![CDATA[

    function onLoad()

      var adjust = document.getElementById("adjust");

      flush();

      adjust.style.height = "5em";

    function flush() { document.documentElement.getBoundingClientRect(); }

]]>

  </script>

  <hbox align="stretch">

    <box id="adjust"/>

    <html:input id="input" value="YO"/>

  </hbox>

</window>