#wrapper{  
    margin-left: auto;  
    margin-right: auto;  
    width: 900px;  
    text-align: center;  
}  
#toppanel {  
    position: relative;  
    top: 135px;  
    width: 900px;  
    z-index: 25;  
    text-align: center;  
    margin-left: auto;  
    margin-right: auto;  
}  
#panel {  
    width: 900px;  
    position: relative;  
    top: 1px;  
    height: 0px;  
    margin-left: auto;  
    margin-right: auto;  
    z-index: 10;  
    overflow: hidden;  
    text-align: left;  
}  
#panel_contents {  
    background: black;  
    filter:alpha(opacity=70);  
    -moz-opacity:0.70;  
    -khtml-opacity: 0.70;  
    opacity: 0.70;  
    height: 100%;  
    width: 904px;  
    color: white;
    position: absolute;  
    z-index: -1;  
}  


.panel_button img{  
position: relative;     
top: 10px;  
border: none;  
}