Seeing this on https://bugzilla.mozilla.org/show_bug.cgi?id=1421401#c35. I see that the icon inside the button sits lower left to the center. I think the same is the case for Chrome, though it seems a lot less pronounced. Vertical offset seems to be resolved if `line-height: 0` is removed.
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Seeing this on https://bugzilla.mozilla.org/show_bug.cgi?id=1421401#c35. I see that the icon inside the button sits lower left to the center. I think the same is the case for Chrome, though it seems a lot less pronounced. Vertical offset seems to be resolved if `line-height: 0` is removed. Seems to only happen for some buttons.