CSS Selectors Quiz

#1 Which of the following is an invalid selector?

> *

* * *

* + :first-child

* * + *

#2 Which selector has the highest specificity?

div > img.box

img:nth-of-type(3)

img:not(:first-child)

img + img + img

#3 Which of the following is an invalid selector?

:empty-child

:last-child

:only-child

:first-child

#4 The + [plus symbol] is called

Subsequent-sibling combinator

Child combinator

Next-sibling combinator

Descendant combinator

#5 Which of the following is a valid Pseudo-class?

:only

:empty

:selected

:last-of-child

#6 Which of the following is equivalent to .box ?

[class~=box]

[box]

[class=box]

[class^=box]

#7 The ~ [tilde symbol] is called

Subsequent-sibling combinator

Next-sibling combinator

Descendant combinator

Child combinator

#8 Which selector has the lowest specificity?

div > *:last-child

div > *:not(div)

div.box

div:nth-of-type(3n + 2)

#9 How to select a div with no content?

div:blank

div:empty

div:no-child

div:nth-child(0)

#10 Which selector has the highest specificity?

div > * > *:not(:first-of-type)

*:first-child:last-child

div:only-child

div + div > *:first-child

#11 Which selector has the highest specificity?

*

div div

div:nth-child(3n + 2)

*:not(.box)

#12 Which selector has the lowest specificity?

div > *

* + * + *

* > *:last-child

div + div:not(.box)

#13 Which of the following is a valid selector?

[class?=box]

[class!=box]

[class^=box]

[class%=box]

#14 Which selector has the lowest specificity?

*:not(div)

.box:not(div)

[class="box"]

.box

#15 Which selector has the lowest specificity?

div

:root

::before

*

CSS Selectors