Image gallery not responsive

Hi Blueowl. This is me again. I am still working on the page.
Let me show you one thing very weird. It´s a problem with the image gallery. When you see in your laptop it looks perfect. But if you make small the browser or you use your mobile, then the problem appears, because the image is displayed outside the page.

Could you please helping me with this..

Thank you.

Sorry the url is the following: http://www.sugar7.eu/10503/catalogo/