Do you want to use a video player on your site? Don’t worry too much. Thanks to HTML5, you can use the <video/> tag like the <img/> tag. You can look here for detailed information.
<video preload="none" width="640" height="300" poster="{imageUrl}" data-setup="{}" controls="true" class="video-player">
<source src="{video.url}" type='video/mp4'/>
</video>