#contents{
	width:670px;
}
#contents h2{
	margin-top:10px;
}

.contents-detail{
	width:643px;
	margin:15px auto 0 auto;
}

.contents-detail h3{
	margin-top:20px;
}
.contents-detail h3.first{
	margin-top:0;
}
/*--------------------

	clearfix
	
	※すべてのclearfixしたいものをまとめて書く

--------------------*/

.contents-detail{
    overflow:hidden;
    zoom:1;
}

.contents-detail:after{
    content: "";
    display: block;
    clear: both;
    height: 0px;
    overflow: hidden;
}

* html .contents-detail{
    height: 1em;
    overflow: visible;
}