If you have already read any part of the book, you already know that I am begging you to use a CSS preprocessor, such as Sass or LESS. I prefer Sass for several reasons, but I won't really go into the details too much. Instead, I prefer to focus on the similarities between the two, and I will leave it to you to decide which framework you prefer. I am not being coy or disingenuous; I honestly find such arguments exhausting, especially when they come down to individual contexts.

I will say for the nth time that I prefer Sass. For me, some of it is the syntax but the differences from LESS are fairly minor. For me, another part of it is that I work mainly with Ruby on Rails, and Rails supports Sass right out of the box. Furthermore, I find the syntax of SCSS (rather than the older Sass that came earlier) to be so similar to CSS, which I've been using for about 25 percent of my life, so I also prefer it because it's less of a cognitive shift from CSS, which I know so well.

I also find some of the syntax of LESS to be confusing. The two main examples are how they use the @ symbol for global variables, as opposed to the $ symbol that Sass uses, and how LESS uses the notation for a CSS class, .(period), to call a mixin, whereas Sass uses the more explicit @include. These are admittedly small quibbles.

But, there, those are my reasons. I hope you find them helpful in figuring out what works best for you.

Now, let's move on to understanding how all of these preprocessors help you work fast and efficiently. Hopefully, this is enough to whet your appetite so you can learn more. I will end the chapter with a list of resources, where you can go to learn more independently.