Contact form issue

So I have Contact Form 7 along with the Felici custom theme:
https://wptitans.com/felici/

The problem I am having is that after submitting a message with the contact form, a user sees the usual “Your message was sent successfully. Thanks.” message, but the message is partly under the submit button.

You can see what it looks like with this picture:
https://img84.imageshack.us/img84/722/contactn.png