Reduce unwanted space

[scottyrob]

Hi... Can someone help me out here? im a bit stuck.. How do i decrease the size to the left and right of the central box (the dark grey areas).. Here is the link to my site! http://newdesign.loddonexplorers.co.uk/

[the tree]

In your CSS you can change the highlighted bit#container
{
width: 798px;
margin: 0 auto;
} but having a page with a fixed width 800px or wider will cause problems for a lot of your visitors and I really wouldn't recomend it.