Displaying the fullscreen background video on mobile devices presents several challenges:
Most mobile platforms (iOS in particular) will refuse to autoplay HTML5 video to avoid potentially ruinous data charges.
In such cases the video will be displayed with an embedded play button, which in turn…
…may capture touches on the device, locking out links that may be in the content on top of the video.
While it is possible to feature-detect support for video autoplay with JavaScript (a technique I will cover in a future article), the easiest solution is to use a media query that switches off the video entirely on smaller screens, substituting the placeholder image in the background.
