Embedding Mp4 video in website to play in loop (and hide play controls)

I am experimenting with the use of mp4 videos in websites and would like to try something like using an mp4 as a page background so I'm wondering if its possible to embed an mp4 file so that it loops (plays automatically which I think I already know how to do) and that it hides the play controls so that it just shows the video picture. I've been searching around a bit but haven't been able to figure if this is possible, any advice is greatly appreciated.