discourse/discourse — pull request #39 by bendoerr (2013-02-06 17:43:57+00:00)
Title: Split -vendor-placeholder selector by vendor.

Some browsers (specifically Firefox(18) that I know of) fail to select
correctly if the selectors are combined. This was fixed in bootstrap
(https://github.com/twitter/bootstrap/blob/master/less/forms.less#L210).
Not sure of the exact commit but there is a nice comment.

This is related to http://meta.discourse.org/t/compose-forms-inline-labels-not-properly-ghosted/1326

I have signed the CLA.