Use the CSS3 transform translate(-50%, -50%)
to make the video in the center of the page:
Html Code
<div class="video-container">
<video autoplay loop="true" width="1280" height="720">
<source src="http://www.w3schools.com/html/mov_bbb.mp4" type="video/mp4">
</video>
</div>
CSS Code
.video-container {
position: absolute;
top: 0;
bottom: 0;
width: 100%;
height: 100%;
overflow: hidden;
}
.video-container video {
/* Make video to at least 100% wide and tall */
min-width: 100%;
min-height: 100%;
/* Setting width & height to auto prevents the browser from stretching or squishing the video */
width: auto;
height: auto;
/* Center the video */
position: absolute;
top: 50%;
left: 50%;
-webkit-transform: translate(-50%, -50%);
transform: translate(-50%, -50%);
}
body {
background: #000;
color: #fff;
font-family: 'Oxygen', sans-serif;
}
See here the demo.