.youtubecontent{
position: relative;
padding-top: 30px; height: 0; overflow: hidden;
}
.youtubecontent{
padding-bottom: 56.25%;
}
.youtubecontent iframe,
.youtubecontent object,
.youtubecontent embed {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}