#seethru{
text-align:left;
position:relative;
width: 80%;
height: 100%; /*Height of middle frame div*/
overflow: auto; /*Disable scrollbars. Set to "scroll" to enable*/
border:1px solid black;
background-color: #B9CCDA;
filter: alpha(opacity=75);
opacity:0.75;
}

/*Fake Frames Layout */
#framecontentUpper, #framecontentMiddle{
position: relative; 
top: 0; 
left: 0; 
width: 100%; 
height: 20%; /*Height of upper frame div*/
overflow: auto; /*Disable scrollbars. Set to "scroll" to enable*/
background-color: transparent;
color: white;
}

#framecontentMiddle{ 
text-align:left;
border:1px solid black;
position:relative;
width: 90%;
height: 60%; /*Height of middle frame div*/
overflow: auto; /*Disable scrollbars. Set to "scroll" to enable*/
background-color: #B9CCDA;
filter: alpha(opacity=75);
opacity:0.75;
}

#maincontent{
position: relative; 
width:100%;
height:20%;
overflow: auto; 
background: transparent;
}

.innertube{
margin-left: 50px; /*Margins for inner DIV inside each DIV (to provide padding)*/
}

* html #maincontent{ /*IE6 hack*/
height: 20%;
}