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The :before and :after Pseudo-elements

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I´m reading the CSS tutorial and I just read about the :before and :after Pseudo-elements. Can somebody tell me when I could need these elements?Because I can´t guess for what I´d want to add some sound or something after or before a i.e. h1 ocurrs.Thanks!

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Well let's say you wanted your headings to be in bracket [like this]. You could do:h1:before { content: "["; }h1:after { content: "]"; }Also you can decide to disable or enable quotation marks around quotes like this:q:before { content: open-quote; }q:after { content: close-quote; }You can also use p:after { content: url(image.gif); } to place some signature image at the end of a paragraph, and so on.

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