Create a loading screen video?

I’d like to have a repeating video on my loading screen for my server, it’s one of those spinning progress things, with the sound of an old harddrive working, but i don’t know if the steam browser can stream .swf files, i basically want the video to repeat in full screen, no ads, no full youtube like website, only the video in full screen.
Is this possible? It does not matter what type of video file it has to be because i got one of those fancy converters.

It would be pointless, because it will freeze unless you are downloading something.

Well i do have some addons on my server, it takes around 1-2 minutes to join if you don’t have any of the content.

Something like this?

<video style="position:fixed;top:0;left:0;bottom:0;right:0;z-index:-1000;" src="video.mp4" autoplay>



[editline]9th December 2013[/editline]

But i don’t know coding, is there a website that hosts fullscreen videos?