body{
margin:0;
padding:0;
line-height: 1.5em;
}

#maincontainer{
width: 904px; /*Width of main container*/
margin: 0 auto; /*Center container on page*/
}

#topsection{
height: 140px; /*Height of top section*/
}

#contentwrapper{
float: left;
width: 100%;
}

#contentcolumn{
margin-left: 216px; /*Set left margin to LeftColumnWidth*/
}

#leftcolumn{
float: left;
width: 216px; /*Width of left column*/
margin-left: -904px; /*Set left margin to -(MainContainerWidth)*/
margin-top: 155px;
}

#footer{
clear: left;
width: 100%;
margin-top:15px;
}

.innertube{
margin: 15px; /*Margins for inner DIV inside each column (to provide padding)*/
margin-top: 160px;
}