#common-contents{
	color:#96dbe0;
	width:820px;
	margin:0 auto;
	background:url(common-contents/common-contents-bg.jpg) repeat-y center top;
}
#common-contents:after{
	content: ".";
	display: block;
	clear: both;
	height: 0;
	visibility: hidden;
}
/* clear fix */
* html #common-contents {
    zoom:1;/*for IE 5.5-7*/
}