Add a Gecko-only style to avoid a printing bug
Add a Gecko-only style to avoid a printing bug

See https://bugzilla.mozilla.org/show_bug.cgi?id=267029#c17

vivliostyle/vivliostyle.js,vivliostyle/vivliostyle.js,vivliostyle/vivliostyle.js,vivliostyle/vivliostyle.js