cliftonshipway on "Contact Form 7 Responsive Columns"

Thanks so much Rene, I added the following line of code to fix it:

@media (max-width: 500px) {
    #c7form_left {
    float: none;
    width: 100%;
}
    #c7form_right {
    float: right;
    width: 100%;
}
}

I really appreciate the quick help, you are awesome :)