Pseudo Element

Just like pseudo-classes, pseudo-elements are added to selectors but instead of describing a special state, they allow you to style certain parts of a document. For example, the ::first-line pseudo-element targets only  the first line of an element specified by the selector.

Syntax

selector::pseudo-element { 
  property: value; 
}

Browser Support

You can use only one pseudo-element in a selector. It must appear after the simple selectors in the statement.