:element

:empty

:enabled

None of these

E ~ F

::after

:checked

None of these

Name

ID

Class

Tag

A →1, B →5, C → 3, D → 4

A → 2, B → 3, C → 1, D → 4

A → 2, B → 6, C → 4, D → 3

A → 5, B → 3, C → 2, D → 4

tag

class

id

div

:valid

:required

:optional

:invalid

ul > li

ul li

ul + li

ul ~ li

Combinator selector

Pseudo Class selector

Pseudo elements selector

Attribute selector

Selects all elements

Selects all siblings after a specified element

Selects only the first sibling of a specified element

Selects only the last sibling of a specified element

:target

:selection

::selection

URO

:nth-child(last)

:last-child

:only-child

:nth-last-child(1)

Selects the first child of an element

Selects all sibling elements

Selects the immediately next sibling of an element

Selects the parent of an element

class

id

type

None of the above

class

id

article

html

tag

id

class

both class and tag

#classname

.classname

element.classname

*classname

[attr]

[attr=""]

[attr=*]

attr[ ]

E.class

E~F

*

E,F,G

input:checked

input:focus

input:hover

input:active

.example

#example

element.example

example

A → 4, B → 3, C → 2, D → 1

A →5, B → 4, C → 3, D → 2

A → 6, B → 2, C → 3, D → 4

A → 5, B → 2, C → 3, D → 6

E#id

.class

#id

*

A → 2, B → 1, C → 3, D → 6

A → 2, B → 1, C → 3, D → 4

A → 2, B → 5, C → 3, D → 4

A → 5, B → 1, C → 3, D → 4

E[attr^=value]

E[attr$=value]

E[attr*=value]

None of these

focus

hover

active

checked

A → 2, B → 5, C → 3, D → 4

A → 2, B → 6, C → 3, D → 4

A → 5, B → 1, C → 3, D → 4

A → 2, B → 1, C → 3, D → 4

:default

:%

:disabled

None of these

content p

p.content

.content > p

p .content

mouse over

mouse hover

hover

mouse move

h1.hover

h1*hover

h1:hover

h1-hover

:root

:nth-of-type(n)

:only-child

none of the mentioned