Google, IBM & Meta Certificates — All 10,000+ Courses at 40% Off
One annual plan covers every course and certificate on Coursera. 40% off for a limited time.
Get Full Access
CSS is very basic and tedious to write by hand. However, by using a CSS preprocessor, we can introduce variables, functions, calculations, shorthand, minification, and other cool stuff all while keeping our source files clean and readable. The power of using a CSS preprocessor for doing responsive design should not be underestimated.