With activated Pin-It-Button the images of my blog are larger than the area of my content

[Rocheauxfees]

Hi there,

i'm sorry about my bad english, I'm coming from Germany and I'm doing some blogs and site beside my daily work. So the blog of my girlfriend http://www.ohilove.de. Over there I've installed this plugin and everything has worked from the start.
Except of the displaying in all versions of Firefox I've tried. To bring you an example, take the following page: http://www.ohilove.de/neon-blumentoepfe. By using a version of the Firefox-Browser the included images of this article appear very large even larger than the space of my content area. What is wrong in the way of my install? Can I do something to improve it or is there a general bug with using of Firefox?

Please, can somebody help me with this problem?

Cheers,
Julian

[incaic]

Try this css code.

.pibfi_pinterest {
  max-width: 100%;
  height: auto;
}

[rolandinsh]

in some cases only

.pibfi_pinterest {
  max-width: 100%;
}

can be used