Is there a reason for including the tag name in the CSS or class selector?

Question

I am wondering if there is a difference between div.classand .classhow CSS selectors, if there is only one tag (DIV) with this attribute. Same for identifiers: div#IDand #ID.

Any idea that, anyway, is there a difference? For me, I use a class or identifier in these situations; but only because he is gaining faster.

Answer 1

• They are more specific, so long ones will override the shorter version if they conflict. div.foowill have a specificity of 11, and .foohas a specificity of 10.
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Answer 2

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p#id is (0,1,0,1)

#id is (0,1,0,0)

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Answer 3

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Answer 4

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Answer 5

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