Please see these browser bug reports: https://bugzilla.mozilla.org/show_bug.cgi?id=1575174 https://bugs.webkit.org/show_bug.cgi?id=200916 https://bugs.chromium.org/p/chromium/issues/detail?id=993760 I need a way (eg CSS) to opt into precision (and out of snapping/rounding). Is such a property in any of the existing W3C specs?