In this chapter, you've seen how to customize templates using the built-in options. However, as not all templates contain the same set of options, sometimes you'll have to dive under the hood and change a file or a few lines of code to get the template to look just the way you want. You've experienced this in Chapter 4, Web Building Basics: Creating a Site in an Hour, when you wanted to change the tagline of the Protostar template and had to change a line of CSS code.
In the beginning of this chapter you learned that Cascading Style Sheets (CSS) take care of your website's look and feel. If you want to change way the site looks, you'll edit the styles in its CSS file (or CSS files, as the template designer often splits the necessary code into different stylesheet files).
If you're not familiar with CSS and what it does, have a look at the basic explanation in the following section. After that, we'll see some examples of how tweaking CSS code of a...