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Numbers in Css

Why can't I use numbers as selectors in id's or classes in Css? I have no intentions to use it anyway. It's just a matter of curiosity.

cssclassesidstylenumberselector
13th Mar 2017, 3:18 PM
Peá Campos
Peá Campos - avatar
1 Odpowiedź
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mmh only number like .1 or #20 ?
13th Mar 2017, 3:22 PM
Oliveur “Fyrea” MRN
Oliveur “Fyrea” MRN - avatar

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