Flipped content overflow

[npirlot]

Thanks for the excellent article/work. I am encountering one issue with it, in that I tried to make the content in the flip side have overflow:auto, so that if the content is loger than the height of the container, but it seems that once flipped, the 'polaroid' is behind some kind of invisible container, and the scroll bars do not respond.

This occurs mostly in Chrome; expected behaviour works in Firefox and IE10.

A preview of the issue can be seen at http://www.oleti.fr/fr/testimonials-polaroïds/?preview . Note that the content is not yet live, hence the 'preview' parameter on URL.

I have also temporarily made it that text becomes red on hover, and again, it does not respond in Chrome (v39), but does in IE10 and Firefox.

Would you be able to help point towards a solution that would work for all browsers?
Thanks

[npirlot]

@botelho would you have any feedback on this please?
Thanks,
Nic