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



Read more: Responsive Video Embed – How to add Responsive YouTube and Vimeo videos to your website. http://cyberdesigncraft.com/responsive-video-embed/