Customize landing page

Hi Mahesh, I just created a simple landing page (http://travelintense.com/newsletter-sign-up/) in order to encourage our readers to sign up to our newsletter without any distraction. I encountered two problems: 1. At the bottom and at the top of the page is gray space - how do I remove this or color it in white, so the whole page background looks white? 2. I embedded a Mailchimp sign up form. The first part of it shows up to the right of the picture ("First Name"), but then the field for it and all that comes afterwards gets pushed underneath the picture, even though I already set the field width to a maximum of 50%. Any idea how to fix this? I want it all to show up on the righten side of the picture. Cheers, Michaela