#wrapper {width:1000px;
		margin:0 auto;
		}



#header  {background-color:yellow;
			text-align:center;
			height:50px;
			}




#footer{clear:both;
		background-color:red;
		text-align:center;
		}





#logo	{float: left; width: 50px; padding: 20px;
		background-color:orange;
		text-align:left;
		height:50px;
		}




#navigation {float:left; width: 870px; padding: 20px;
		background-color:blue;
		text-align:left;
		height:50px;
		}




#sidebar  {clear:both;
		float:left; width:50px; padding:20px;
		background-color:yellow;
		text-align:left;
		height:500px;
		}




#content {float:left; width: 870px; padding: 20px;
		background-color:purple;
		text-align:left;
		height:500px;
		}