body {
	text-align=: center;
	}	 

.contents{
	width: 800px;
	margin:auto;
	margin-top: 30px;
	text-align: left;
	}

.main{
	float: right;
	width: 590px;
	padding-right: 10px;
	}

.side{
	width: 170px;
	margin-left: 10px;
	padding-top: 40px;
	font-size: 88%;
	}