<title>CSS3LAYOUT</title>
<style type="text/css">

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

b{font-size: 110%;}
em{color: red;}

#maincontainer{
width: 840px; /*Width of main container*/
margin: 0 auto; /*Center container on page*/
}

#topsection{
background: #CBBA98;
height: 250px; /*Height of top section*/
float: right;
width: 78%;
}

#topsection h1{
margin: 0 230px
padding-top: 15px;
}

#lefttopsection{
background: #CBBA98;
height: 250px; /*Height of top section*/
float: left;
width: 22%;
}

#lefttopsection h1{
margin: 0 230px
padding-top: 15px;
}

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

#contentcolumn{
margin: 0 200px 0 230px; /*Margins for content column. Should be "0 RightColumnWidth 0 LeftColumnWidth*/
}

#leftcolumn{
float: left;
width: 230px; /*Width of left column*/
margin-left: -100%;
background: #CBBA98;
}

#rightcolumn{
float: left;
width: 200px; /*Width of right column*/
margin-left: -200px; /*Set left marginto -(RightColumnWidth)*/
background: #CBBA98;
}

#footer{
clear: left;
width: 100%;
background: CBBA98;
color: #000;
text-align: center;
padding: 4px 0;
}

#footer a{
color: #000000;
}

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

</style>