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Which selects document’s root element?

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+1 vote
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Which selects document’s root element?

(a) :required

(b) :root

(c) ::selection

(d) :out-of-range

The question was posed to me in an interview for internship.

My question is based upon Server Specific CSS topic in section Layout & Images of CSS

1 Answer

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Best answer
Right choice is (b) :root

Explanation: :root selects the document’s root element, ::selection selects the portion of an element that is selected by a user, :required selects input elements with “required” attribute specified, :out-of-range selects input elements with a value outside a specified range.

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