@charset "utf-8";
/* CSS Document */
body{	
	background-color:#7a847c;
	margin:0;
}
#main_content{
	width:1000px;
	height:650px;
	border:#999 1px solid;	
	position:absolute;
    margin:-325px 0px 0px -500px;/*調整水平垂直置中*/
    top: 50%;
    left: 50%;  
}