#maincontainer{
width: 910px; /*Width of main container*/
margin: 0 auto; /*Center container on page*/
}

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

#contentcolumn{
margin-right: 455px; /*Set right margin to RightColumnWidth*/
}

#rightcolumn{
float: left;
width: 455px; /*Width of right column*/
margin-left: -455px; /*Set left margin to -(RightColumnWidth) */
}

.innertube{
margin: 10px; /*Margins for inner DIV inside each column (to provide padding)*/
margin-top: 0;
}

#clean2col{
clear: left;
width: 100%;
}