While some will mistakenly assume this prototype is "made using HTML5", it is a technically inaccurate label. The design is largely thanks to CSS3 and while a few HTML5 elements are used by the prototype, none of them are visible in the UI. The mixer uses some hidden
<input type="range">elements for tracking the values of the crossfader, upfader and rotary knobs behind the scenes; the same approach applies to the pitch slider on the turntables. In the event Flash is not present, HTML5
Audio()may be used by SoundManager 2 for playback of MP3s. Aside from these two elements, the markup is run-of-the-mill (and hopefully, somewhat-semantic) HTML4.