Graham Lordeagle Here is a javascript that will control all the css of the xt auth iframe
it is set with the default values
you cannot alter or get the the actual content of the iframe
all you can do is change it's appearance and position

<div id="auth"><xt:auth /></div> <script> var auth=document.getElementById("auth"); var style=auth.getElementsByTagName("style"); var iframe=auth.getElementsByTagName("iframe"); style[0].innerHTML="html { padding-top: 26px; } #xt_auth_iframe { position: fixed; top: 0; left: 0; background: transparent; }" iframe[0].style.width="100%"; iframe[0].style.border="0"; iframe[0].style.height="26px"; </script>