.wrapper {
    width: 100%;
	text-align:center;
}
.container {
    height: 0;
    width: 100%;
    padding-bottom: 50%;
    overflow: hidden;
    position: relative;
	text-align:center;
}
.container iframe {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
	max-width:800px;
	max-height:720px;
	text-align:center;
	overflow: hidden;
    position: absolute;
}