It's simple to compute data and perform calculations directly in your stylesheet using Less. It's also simple to create and mix colors in your stylesheet - without having to use a color picker. Watch me as I show you how to create new colors from existing colors with the functions lighten() and darken(). Join me and learn how to make CSS more dynamic and rich in colors with the power of Less. Want to see how much more you can do with Less? Come and watch my new course Introduction to Less on Learnable.com. I've got you covered. Introduction to Less: learnable.com/courses/introduction-to-less-2900/