html,body {
    height:100%;
	background:#FFFF99;
}
header {
        
    display:block;
    background:#00FF99;
    padding:10px 0px;
	text-align:center;	
	font-size:2em;
	font-family:courier;
	font-style:italic;
	font-weight:600;
	color:#0033CC
}
td{
    font-size:em;
	font-family:courier;
	font-style:italic;
	font-weight:600;
	color:#0033CC
}
table {
    border-top: double;
    border-bottom: double;
    border-right: blank
	
}
thead, tbody, tfoot {
    border-top: solid;
    border-bottom: solid
}
colgroup {
    border-right: solid
}
nav{
	width:90%;
	background-color:#FFCC00;
	height:70px;
	margin:0px auto 0px;
	color:black;
	text-align:center;
	font-size:1em;
}
section {
    width: 79%;
    background: #ccc;
    float: left;
    overflow: auto;
    padding-bottom: 60px;
    padding-top:30px;
}
 article{
	width:90%;
	border:1px solid #FFF;
	margin:0 auto;
	background-color:#00FF99;
	height:200px;
}
aside {
    float: right;
    border: 1px solid red;
    width: 20%;
    border: 1px solid red;
    height:250px;
}
footer {
    position: relative;
    margin-top: -50px;
    height: 40px; 
    padding:5px 0px;
    clear: both;
    background: #00FF99;
    text-align: center;
    color:#0033CC;
}