.responsive-embed {
    position: relative;
    padding-bottom: 56.25%; /* 16/9 ratio */
    padding-top: 30px; /* IE6 workaround*/
    height: 0;
    overflow: hidden;
}
.responsive-embed iframe,
.responsive-embed object,
.responsive-embed embed {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}