body {
 background: black;
 width:1024px;
 margin:0 auto;
 border:5px solid #ccff99;
}
#cabecera {
 border-bottom:1px solid #000000; 
 background:#ccff99;
 color: #333333; 
 margin:0;
 text-align: center;
 z-index:6;
}

#izq {
float: left;
width: 18%;
height:100%;
background:black;
color: #333333;
}

#c-col {
float: left;
width: 82%;
height:100%;
background:white;
}

#pie {
background:#ccff99;
clear: both;
}