CHAPTER 1
Introduction to Preprocessors
HTML5 and CSS3 are changing how web pages are designed. CSS3 provided web developers with advanced features such as gradients, transitions, and animations, etc. However, these new features increased the complexity of CSS code, thus making it more difficult to maintain.
Besides the complexity introduced by CSS3, writing CSS may turn painful with time, because programmers have to perform many of the same activities over and over again (such as having to look up color values in CSS and margin/padding declarations). These small repetitive tasks add up to quite a bit of inefficiency. Preprocessors are the solution ...
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