body,html {
	margin: 0;
	padding: 0;
}



.backgroundimg {
	min-height: 100%;
	min-width: 680px;
	width: 100%;
	height: auto;
	position: fixed;
	top: 0;
	left: 0;
	display: none;
	z-index: 0;
}



@media screen and (max-width: 680 px) {
	.backgroundimg {
		left: 50%;
		margin-left: -340px;
	}
}