Remove Empty Space from Checkout Page

Here is the working example but i cannot find which divs are taking up the space or how to remove the paddings or hide the empty spaces. Ideas please?

Hi,

For the top, you have a missing header. So you can hide the h1, with ".hikashop_checkout_page h1{display: none;}" and for the space under the registration form, there s a <br/> tag, so you can remove it by editing the view "checkout / step" in Display > VIews.