CSS Help Needed Today

Take a look at this page: <[login to view URL]> Click on any of the yellow "choose plan" buttons to bring up the sign up form. The form fields look strange and are not lined up with the label. I think it has something to do with the "block" option specified in the site's CSS. What CSS can I put in here to make the form fields look more like the ones on this page: <[login to view URL]> Or, is there a way just to override the site formatting and remove it from my page with the strange looking form fields? Thanks for considering my project. Harry