<div class="videos">
<video width="100%" height="100%" autoplay="autoplay" muted loop="loop">
<source src="img/about.mp4" type="video/mp4">
<object data="img/about.mp4" width="100%" height="100%">
<embed src="img/about.swf" width="100%" height="100%">
</object>
</video>
<div class="bgs">
</div>
</div>
.bgs{
100%;
height: 100%;
background: url(img/vbj.png);
position: fixed;
left: 0;
top: 0;
z-index: 2;
}