Footer and image on the top cut on the width

Hi everyone,

I just made a new form with material design, and when I put it on the page, the footer and the bubble image on the top of my page are cut in width. If I put a standard contact form 7 without material design, I have not this problem. So can someone help me to resolve this issue ? Thank you very much

Ymoshietsu

The page I need help with: [log in to see the link]