* {margin:0;padding:0;box-sizing:border-box;}
html,body {width:100%;height:100%;}
#center {
	position:absolute;
	top:50%;
	left:50%;
	transform:translate(-50%,-50%);
	padding:0px;
	max-width:600px;
	background-color:#000;
	border-radius:0px;
}