Why is there a gap at the top of my page?

There seems to be about a 2cm gap at the top of the page but I can't find what it causing it. Any ideas?

http://www.jw-enterprises.co.uk/seo/

 

Download the CSS file http://www.jw-enterprises.co.uk/wp-content/themes/estetique/style.css
and edit the 14th line

.in {
padding 75px 0;
}

to

.in {
padding 5px 0;
}

 

you should add this code on style.css file

in{
padding 0px 0 !important;
}

its 100% guarantee for work