body, html { height: 100%; font-family: arial, sans-serif; font-size: 16px;}
		#wrapper { 
			width: 960px; 
			margin: 0 auto;
		}
		#leaderboard { 
			margin: 5px auto 5px; 
			width:728px; 
			height: 90px; 
			background-color: #ffffbb; 
			text-align: center;
		}
		#header { 
			width: 100%; 
			height: 80px;
			text-align: center;    
			padding: 15px 0 15px;
    		border-bottom: 1px solid #dddddd;
    		margin-bottom: 15px;
    	}
		.column { 
			display: inline-block; 
			height: 100vh;
		}
		#column_left {
			width:160px;
		}
		#column_middle { 
			width: 420px;
			margin: 0 20px 0; 
		}
		#column_right {
			width: 330px;
		}
		#column_left, #column_right { 
			margin: 0;
			vertical-align: top;
		}
		#banner1 {
			width: 726px;
			height: 88px;
			border: 1px solid #cccccc;
		}
		#banner2 { 
			width: 158px;
			height: 598px;
			border: 1px solid #cccccc; 
		}
		#banner3 { 
			width: 328px;
			height: 278px;
			border: 1px solid #cccccc; 
		}