zurb/foundation — pull request #1351 by kiwiupover (2013-01-05 04:43:21+00:00)
Title: Centered top and bottom tooltips above or below an element.

Centered top and bottom tooltips by adding the classes tip-centered-top and tip-centered-bottom along side has-tip. The tooltip is positioned centered whether the tooltip is wider or narrower than the target element. The nub is positioned in the middle of the tool tip.

tip-centered-top

tip-centered-top

![centered-tooltip-bottom](https://f.cloud.github.com/assets/647691/44738/d9ba83ca-56f1-11e2-87ea-d9a3a2d95e9c.png)