selector

:active

:empty

:first-child

:focus

:hover

:last-child

:last-of-type

:link

:nth-child(n)

:nth-last-child(n)

:only-child

:root

:visited

*

+

>

~

Adjacent Sibling Combinator (+)

Attribute selector

Child Combinator selector (>)

Class selector (.)

Descendant selector (Space)

Element selector

General Sibling Combinator (~)

ID selector (#)

nth-child()