The Video Tab can be used to add a video background to a container. Videos of course can be added in many ways, with any of the three video elements, into a container or column, but adding a background video can sometimes be a useful tool.
The mp4 format is the only required file type, although there are two other optional file types for full browser compatability. You can also add a YouTube or Vimeo video instead. You can control the aspect ratio, loop and mute the video, and there is also a field for a fallback preview image for older browsers.
Like images, it’s important to remember that containers have no inherent size, and so don’t automatically resize to a video’s dimension. So the best user case for background videos is for videos that act in a background capacity, rather than being the main content. There are ways to resize the container to closer fit the video, but it’s not really designed for that. See the video at the top of the page for more information on the various ways you can use video backgrounds.