chinchang/hint.css — pull request #34 by MoOx (2013-05-08 15:50:52+00:00)
Title: Fix tooltip margin mixin for latest Sass version

Latest version of Sass change the way parentheses are handled, which
generate properties like `transform: translateY-8px`.
I also move the mixin to the mixins file + reuse the mixin where it's appropriate.