Rather than a check, Safari seems to add two dots in front of the selected option in a drop down if the font is larger. -webkit-appearance: none doesn\'t seem t
Looks like this bug was fixed in Safari 9, but broken in Safari 8 (and maybe earlier). In Safari 9, if the font is increased a lot (e.g. to 50px http://jsbin.com/xoduzizita/2/edit?html,output), the checkmark appears cutoff, but is much better than two dots!