Check this awesome online list of cheatsheets written by Rico Stacruz.
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Motion One
A new animation library, built on the Web Animations API for the smallest filesize and the fastest performance.
Prepros
Compile Sass, Less, Stylus, Jade, CoffeeScript on Mac, Windows & Linux with Live Browser Reload.
Podlove player
Podlove Web Player is a HTML5 based web player for audio and video media files that is optimized and extended for the specific needs of podcasters. This player is the integrated player for the Podlove Podcast Publisher but can be used independent from it.