help with css moving location of captcha form to the end of the registration page

Hi, i would like some help with CSS on this page please

- domain -
- screenshot of changes -
1) extend the width of the white box fields so that they are all the same width within that block
2) move the registration conact form to just above the register button so its at the bottom of the contact form instead of right after the password field please.

Support access is also open