Video background in top banners
Videos can be used in top banners as an alternative to a static image. The purpose could be to establish a certain mood or atmosphere, or simply give a more dynamic context. It is still crucial that this video area should not be used for any critical information or content that serves any other purpose than branding or decorative means.
Best practice is to not use fast moving or attention-competing footage as this will work counterproductive to desired user behaviour. Please use discrete footage that is suitable for the content/concept.
Here is a good example:
Auto start / no playback functions/ui
Maximum file size : 2MB
Optimal dimensions / Aspect ratio: 750x500
Remeber to have a mobile fallback image.