Media

.u-responsive-image

Proportionally resize images accordingly to the devices width.

.u-responsive-video

Applies the same effect of .u-responsive-image, on videos. Define this class on the element that contains the video player.

<div class="u-responsive-video">
    <iframe src="https://www.youtube.com/embed/9bZkp7q19f0" frameborder="0" allowfullscreen></iframe>
</div>