Problem mit Firefox...

<style type="text/css">
<!--

/*header*/
td.edit_header_full{background-image: url(http://img.webme.com/pic/h/hpbk-help/1header.png);height: 105px;}

/*Navigation*/
td.edit_navi_headbg{background-image: url();background-color: transparent;}
td.nav_heading{height: 72px;background-image: url(http://img.webme.com/pic/h/hpbk-help/unbenannt.jpg);padding-left: 65px;font-weight: bold;color: #000000;}
td.nav{background-image: url(http://img.webme.com/pic/h/hpbk-help/kopie.png);height: 37px;padding-left: 45px;font-weight: bold;border: 1px solid #000000;}
td.nav:hover{background-image: url(http://img.webme.com/pic/h/hpbk-help/1.button2.png);}
td.edit_below_nav img{visibility: hidden;}

/*Content*/ <p>
td.headline2{color: #000000;font-weight: bold;}
td.edit_rechts_cbg{background-image: url();background-color: transparent;}
td.edit_content_top,td.sidebar_heading{height: 72px;background-image: url(height: 72px; background-image: url(http://img.webme.com/pic/h/hpbk-help/1headbar.png);background-position: -80px;color: #000000;font-weight: bold;}
td.edit_content_bottom2{background-image: url(http://img.webme.com/pic/h/hpbk-help/1footer.png);height: 20px; width: 50px}

/*Rechte Boxen*/
td.edit_rechts_bottom{background-image: url();background-color: transparent;}
td.edit_rb_footer{visibility: hidden;height: 0px;}
-->
</style>