html, body { margin: 0; width: 100%; height: 100%; }
body { position: relative; background-color: #666; }
h1 { width: 200px; margin: 28px auto; }

#container {
	position: absolute;
	top: 50%;
	left: 50%;
	-webkit-transform : translate(-50%,-50%);
	transform : translate(-50%,-50%);
	width: 100%;
	height: 100px;
	
	background-color: rgba(210, 56, 43, 0.5);
	/*background-color: rgba(255, 255, 255, 0.5);*/
}