Selector- Pseudo-selector (Pseudo-element)

1 - About

Pseudo-elements are added to selectors to be able to select a sub-content of a content element. See CSS - Addessing model (through selector and properties).

They will also add an element into the flow.

This are not pseudo-class

3 - Syntax

selector::pseudo-element {
  property: value;

4 - List

5 - Example

Below the pseudo element has an aqua border.

   content: "What ever ... ";
   display: inline;
   border:1px solid aqua;

<p>This text will have "What ever" with an aqua border at its beginning</p>

6 - Documentation / Reference

Data Science
Data Analysis
Data Science
Linear Algebra Mathematics

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