Fix CSS

The default layout contains two floated elements (Ex: .index and .actions) and when debug() is called in the end of the view, after one of these two classes, the browser will render .cake-debug-output over the elements making index and actions unclickable and causing the .cake-debug-output > span to go out of the yellow box.
Merge pull request #94 from Hikkijp/patch-1

Fix CSS