.embed-responsive.embed-responsive-16by9 {
    padding-bottom: 56.25%;
}

.embed-responsive.embed-responsive-4by3 {
	padding-bottom: 75%;
}

.embed-responsive {
	position: relative;
	display: block;
	height: 0;
	padding: 0;
	overflow: hidden;
	width:100%;
}

.embed-responsive .embed-responsive-item, .embed-responsive iframe, .embed-responsive embed, .embed-responsive object{
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	width: 100%;
	height: 100%;
	border: 0;
}