页面底部的未识别空间

I was so thrilled what causes this page to have extra space at the bottom here is the link of the site http://www.intangible-logic.com/lezyne-yr6-4/ I have already checked every elements on the site but there was nothing like margin or bottom that may this is the sample snapshot of what I was trying to mean

Have been trying so hard to search just to solve this please help me

Your problem lies in the .maxidrop-main div. Removing that div takes away the space at the bottom. It may be a div that's not closed like @cryptic said.

Please set overflow:hidden property in #header

#header{
   overflow: hidden;
}

problem is this element in header tag <div id="maximenuck"> ..... </div>