* {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:25px;
	max-width:400px;
	background-color:white;
	border-radius:0px;
	border-style:solid;
	border-color:#DEDEDE;
	border-width: 1px;
}