#BGround {
	width: 790px;
	height: 500px;
	background-color: white;
	float: left;
}

#img1 {
	width: 790px;
	height: 500px;
}


#BtBack {
	margin-left: 771px;
	margin-top: 2px;
	position: absolute;
}

#BtBack img {
	border: 0px;
}