What is the asterisk selector (known as Universal Selector)

About

The universal selector 1) is the star character. (asterisk U+002A

It permits to select all type of tag element. The selection matchs any tag name.

Example

All descendant elements of the body that have a foo attribute

body *[foo]

Syntax

*

The following expressions are equivalent

Name Expression 1 Expression 2
Element selector
*[hreflang|=en]
[hreflang|=en]
Class selector
*.warning
.warning
id selector
*#myid
#myid

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