.tabcontainer{
clear: left;
width:100%; /*width of 2nd level sub menus*/
height:1.5em; /*height of 2nd level sub menus. Set to largest's sub menu's height to avoid jittering.*/
background-color: #FFFFF;
margin-top: -35px;
margin-left: 225px;
}

.tabcontent{
display:none;
width: 821px;
height: 54px;
margin-top: -21px;
background: #FFFFFF url(../interface/submenu_bg.png) no-repeat;; 
filter:alpha(opacity=80);
opacity: 0.8;
-moz-opacity:0.8;
}