Check out a free preview of the full Front-End Tooling and Workflows with Grunt and Beyond course:
The "CSS Preprocessors" Lesson is part of the full, Front-End Tooling and Workflows with Grunt and Beyond course featured in this preview video. Here's what you'd learn in this lesson:

Dave adds the CSS preprocessor, LESS, into the workflow. He does this by adding the Grunt LESS task and introduces the concept of "options" in the Gruntfile.

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