So far in this book, we've built up the basics of what will become our development toolkit for working with Less and taken a whistle-stop tour through some of the syntax and concepts that are associated with Less as a CSS preprocessor. I am sure some well-known actor once said in a film somewhere, "It's time...."

Yes, it's time to get stuck with using Less! However, hold on; this chapter says it's about working with variables, functions, and the like; surely, this means we're developing in programming code, right?

Wrong. Don't worry, my friends; granted, we will look at functions, but they are nothing like the functions you might see when developing using languages such as C# or Visual Basic. Indeed, the only similarity is the name—as we will see, functions within the world of Less are more akin to using a scientific calculator than complicated code.

This is just a small part of what we will cover. Throughout this chapter, we will look...