body {
				margin:0;
				padding:0;
				font-family: Sans-Serif;
				line-height: 1.5em;
   margin-left:auto;
        margin-right:auto;
 width: 1024px;
  /* background: url("graph_724.png") no-repeat center center ;
  opacity : 0.2;	*/		
}
			
			#header {
				
				height: 100px;
			}
			
			#header h1 {
				margin: 0;
				padding-top: 15px;
			}
			
			main {
				padding-bottom: 10010px;
				margin-bottom: -10000px;
				float: left;
				width: 100%;
			}
			
			#nav {
				padding-bottom: 10010px;
				margin-bottom: -10000px;
				float: left;
				width: 230px;
				margin-left: -100%;
				background: #eee;
			}
			
			#footer {
				clear: left;
				width: 100%;
				background: #ccc;
				text-align: center;
				padding: 4px 0;
			}
	
			#wrapper {
				overflow: hidden;
			}
						
			#content {
				margin-left: 230px;  
			}
			
			.innertube {
				margin: 15px;  
				margin-top: 0;
			}
		
			p {
				color: #555;
			}
	
			nav ul {
				list-style-type: none;
				margin: 0;
				padding: 0;
			}
			
			nav ul a {
				color: darkgreen;
				text-decoration: none;
			}