Youtube Responsive Embed

CSS CODE:

.video-container {
position: relative;
padding-bottom: 56.25%;
padding-top: 30px; height: 0; overflow: hidden;
}

.video-container iframe,
.video-container object,
.video-container embed {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}

Next, edit add some HTML around your embed code.
HTML

<div class="video-container"><iframe width="853" height="480" src="https://www.youtube.com/embed/z9Ul9ccDOqE" frameborder="0" allowfullscreen</iframe</div>

Now, if the responsive YouTube embed worked, your videos should be responsive and ready to