A simple button style problem, waiting online._html/css_WEB-ITnose

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What I want to ask is that this way of writing can only make the button touch the div border up and down in IE. It does not work in Opera, Chrome, or Firefox
Me I would like to ask how to write so that the button touches the border up and down in the other three browsers

Reply to the discussion (solution)

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Brother, no, it doesn’t work in ff, chrome, or opera

Just up and down Touching the border of the div

Got it, got it, got it! ! !