I’ve updated my post, Create a studio-style backdrop with CSS3, as I realised a way to do the reflection without requiring an extra image — using the scale transformation function to flip the image vertically.
Last year I wrote a post (Building HTML5 video controls with JavaScript) introducing the HTML5 Media Elements API and demonstrating a simple set of controls for playing video.
In this (somewhat belated) follow-up I’m going to explore building a more interactive set of controls using a JavaScript UI library; I’m going to use Glow, but it could easily be adapted to jQuery UI or similar.