simple? jquery browser compatibility issue

htt开发者_如何学Pythonp://jsfiddle.net/nicolapeluchetti/RBD3K/6/

Works awesome in safari, however when i try in firefox the grey div stays hidden behind the green one. Does anyone has an idea what could be the cause of this problem?

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console.log do not work in the firefox version you tested so its throwing exception on that line and animation is failing. Comment that line it works fine.