User blog comment:DEmersonJMFM/Understanding CSS Selectors/@comment-24757753-20160425101445

A nice little blog! Just a note, though: the term to use here is 'selectors', rather than 'classes'.

, for example, is a class (classes start with '.' (full stop) when used in a selector), whereas  is a selector.

For those interested in more in-depth details, also check out MDN's getting started article on CSS selectors.