Reveal.js!

Reveal.js is a modern open-source non-linear presentation framework based on HTML5, CSS3 and JavaScript, with cool 3D transition effects, cross-bro...

There's a speaker view https://github.com/hakimel/reveal.js#speaker-notes.
It includes a timer, preview of the upcoming slide as well as your speaker notes. Press the _S_ key to try it out. Oh hey, these are some notes. They'll be hidden in your presentation, but you can see them if you open the speaker notes window (hit 's' on your keyboard.

Go to http://lab.hakim.se/reveal-js/

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