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問題:

I am using Font Awesome on my webpage and I want to display an icon inside the :before pseudo element.

According to the documentation/cheatsheet, I have to type ? to get this font, but it isn't working. I believe that is normal because HTML entities aren't supported in :before.

So I googled a bit and found out, that if you want to display HTML entities in :before, you have to use the escaped hex reference.

So I was searching for the hex reference to ? but I found nothing. I believe that is because these are "private use" values, whatever that means.

Is there any way to get it working in :before?

回答1:

The escaped hex reference of ? is \f066.

content: "\f066";

回答2:

In CSS, FontAwesome unicode works only when the correct font family is declared (version 4 or less):

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