ginader/HTML5-placeholder-polyfill — pull request #35 by timohofmeijer (2012-11-28 09:42:19+00:00)
Title: Insert a label node with Javascript when no label if found

I didn't want to add unnecessary label node thus made a small tweak which inserts them when needed. My case was a login screen with just placeholders and no labels. The height and margin settings are to ensure the layout stays unchanged when label-nodes have been inserted.