What are CSS nesting preprocessors?

What are CSS nesting preprocessors?

CSS nesting preprocessors are tools that allow you to write nested CSS rules, making your stylesheets more organized and easier to read.

Can you give me an example of how nesting works?

Sure! Instead of writing separate selectors for child elements, you can nest them like this:

.nav {
  ul {
    list-style: none;
  }
  li {
    display: inline;
  }
}

What are some popular CSS preprocessors that support nesting?

Popular CSS preprocessors that support nesting include Sass, Less, and Stylus. They each have their own syntax and features.

Are there any downsides to using CSS nesting?

Yes, excessive nesting can lead to overly specific selectors, making your CSS harder to maintain. It's best to use it judiciously.