hi,
i'm using select2 4.x
In safari select box is not displayed properly
refer: http://jsfiddle.net/8mnhgq1L/1/ - open this link in safari
i got a solution for this
on your examples page bootstrap takes care of it
but i'm not using bootstrap so the select box is not displayed properly in safari
adding this in css .select-search__field{-webkit -appearance : textfield;} does the trick