*, *:before, *:after {
	margin: 0;
	padding: 0;
}

.placeholder {
	display: block;
	position: absolute;
	width: 240px;
	top: 50%;
	left: 50%;
	margin: -120px 0 0 -120px;
}

@media screen and (min-width: 768px) {
	.placeholder {
		width: 480px;
		margin: -240px 0 0 -240px;
	}
}