.iframe-container {
	 position: relative;
	 width: 100%;
	 padding-bottom: 56.25%;
	 height: 0;
	 margin-bottom:15px;
}
.iframe-container iframe {
	 position: absolute;
	 top:0;
	 left: 0;
	 width: 100%;
	 height: 100%;
}