.{margin:0;padding:0;}

body {
	
	font-family:Arial, Helvetica, sans-serif; color:Black;font-size:20px;line-height:20px;
	background:FFF;
	}

.fix {overflow:hidden;}
.floatleft{float:left;}
.floatright{float:right;}
.stracture{width:970px;margin:0 auto;display:block;}
.main_body_area{text-align:center;height:auto; margin-bottom:0px; border-radius:10px;}

.BMI_form{background:#666; border:1px solid #0099FF; border-radius:10px; height:560px; width:450px;margin-left:300px;margin-top:50px;margin-bottom:100px;}