Surely you are looking for more than this:
<div class="container">
<video id="video" width="770" height="882" onclick="play();">
<source src="https://stackoverflow.com/questions/10422105/video/Motion.mp4" type="video/mp4" />
</video>
<div class="overlay">
<p>Content above your video</p>
<form>
<p>Content Below Your Video</p>
<label for="input">Form Input Label</label>
<input id="input" name="input" value="" />
<button type="submit">Submit</button>
</form>
</div>
</div>
If you want to put the content on top of the video, you would use some kind of positioning:
.container { position:relative; }
.container video {
position:relative;
z-index:0;
}
.overlay {
position:absolute;
top:0;
left:0;
z-index:1;
}