css - Pseudo element content with JQuery -

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this question has answer here:

i trying change arrow on :after pseudo element

my css

legend:after {     content: url('/html/img/arrow-fieldset-up.png'); }

i trying change with

$('legend', selected_fieldset).attr('content','url(/html/img/arrow-fieldset-down.png)')

you cannot select pseudo element jquery. instead can add class css:

legend.selected:after {     content: url('/html/img/arrow-fieldset-down.png'); }

then add class when want change content, example when click legend:

$('legend').click(function() {     $(this).addclass('selected'); })

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