body
{
	width:1000px;
	margin-left:auto;
	margin-right:auto;
	
}
header
{
background-color: black;
color: white;
text-align: right;
padding: 5px 50px 5px 0px;
}
nav
{
float: left;
background-color: lightgray;
color:#128870;
width: 120px;
min-height: 620px;
padding: 10px;
}
main
{
float: left;
padding: 20px;
width: 680px;
}
aside
{
float: left;
width: 120px;
min-height: 620px;
padding: 10px;
background-color: lightgray;
}
footer
{
clear:both;
background-color:#128870;
color: white;
text-align:center;
padding: 1px;
}