Less, Css Pre Processor
http://lesscss.org/#getting-started
http://www.wearecube.ch/from-less-to-css-with-grunt-js/
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Online Less Compailer
http://winless.org/online-less-compiler
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GRUNT——LESS COMPAILER
http://gruntjs.com/getting-started
https://github.com/gruntjs