Value: auto | start | end | left | right | center | justify
Chrome 35 has supported.
May also be implemented text-align: justify-all;
It seems text-align-last, even prefixed, is currently not supported by webkit, I thought Bug 99584 was fixed that, how it seems it is not available at all?
Do you have a test case?
data:text/html;charset=utf8,<div style="text-align-last: justify; -webkit-text-align-last: justify; width: 200px">a sd ad a asd asd asd as da sd as d as da sd a sd as d as d as d asd a sd as d</div>
This works on Firefox and Chrome but not Safari 10.1.
Dupe to Bug 76173, blocked on Bug 121875 it seems