body {
	margin-left: 0px;
	margin-top: 0px;
	margin-right: 0px;
	margin-bottom: 0px;
	
}

.case640
{
	background-image: url(../art/mainbody/case640.jpg);
	background-attachment: fixed;
	background-repeat: no-repeat;
}

.case800
{
	background-image: url(../art/mainbody/case800.jpg);
	background-attachment: fixed;
	background-repeat: no-repeat;
}

.case1024
{
	background-image: url(../art/mainbody/case1024.jpg);
	background-attachment: fixed;
	background-repeat: no-repeat;
}

.case1152
{
	background-image: url(../art/mainbody/case1152.jpg);
	background-attachment: fixed;
	background-repeat: no-repeat;
}

.case1280
{
	background-image: url(../art/mainbody/case1280.jpg);
	background-attachment: fixed;
	background-repeat: no-repeat;
}

.case1600
{
	background-image: url(../art/mainbody/case1280.jpg);
	background-attachment: fixed;
	background-repeat: no-repeat;
	background-position: center center;
}