Reply To: How to get a background behind a video (CSS)

[Senff]

If I look at your Pen at http://codepen.io/MichaelFrank/pen/pvNJdG, I don’t see any problems right away; the light blue background is semi-transparent.

Whether you have an image or a video, it should have no impact on the background behind the image or video. See: http://codepen.io/senff/pen/XJNbqJ

If you want to use a video as a background of a box (that’s not what’s happening on the example you gave on the Adele site), that’s a whole different story, but I assume that’s not what you’re asking (since the original post is talking about a background behind a video).