This kind of underline painting behaviour is proposed in http://dev.w3.org/csswg/css-text-decor-3/#text-decoration-skip-property http://dev.w3.org/csswg/css-tex

This kind of underline painting behaviour is proposed in http://dev.w3.org/csswg/css-text-decor-3/#text-decoration-skip-property http://dev.w3.org/csswg/css-text-decor-3/#text-decoration-sk... as text-decoration-skip:ink. Not yet implemented anywhere though.