Cutting-Edge CSS Features
Depending on when you are reading this, the contents of this chapter may seem commonplace and less cutting-edge in your daily CSS writing. However, as these words are written, these are some of the latest additions to the CSS language.
So, here is what we will take a look at in this chapter:
- What cascade layers are and the problems they solve
 - The syntax and typical applications of cascade layers
 - The rules for layer ordering
 - Adding imported style sheets to a layer
 - Understanding the importance of 
!important - CSS nesting and its origins
 - Examples of syntax and its use cases
 - The 
@nestat-rule - Nesting media queries
 - How to write CSS nesting today
 - How to tell browser vendors you want nesting!
 
In the case of CSS nesting, which we will cover shortly, there are no browser implementations, merely a specification. However, it is an update to the language that I am genuinely excited about...