jquery/jquery — pull request #1563 by mzgol (2014-04-18 00:09:16+00:00)
Title: Css: Use only positive integers as values for widows/orphans

According to http://www.w3.org/TR/CSS2/page.html#propdef-orphans, widows and orphans can take only positive integer values. Together with a Chrome 34 regression this caused the test to fail.

Fixes #15016