html,body {
	margin: 0;
	padding: 0;
	width: 100%;
	height: 100%;
	background-color: #000000;
}

img {
	vertical-align: bottom;
}

#sample {
	width: 1920px;
	height: 1280px;
	margin: 0 auto;
}

#sample_2 {
	width: 1280px;
	height: 1920px;
	margin: 0 auto;
}