Dear W3C expert, excuse me.

Hello, there is a question that has been bothering me, for a long time to take the liberty to ask you about. Why not add one click property in the latest CSS standard?
Even if it is similar to (A: hover) such that the pseudo class, since most of the front is in with £¨<label for="id1"></label><input type="radio" id="id1">£©extremely clumsy way to click event simulation, I want to respect your CSS panel would also considered this question, is because of what not to release a similar attributes? Bother you all.