What you need is something different actually.
No guarantees, but you can try adding the following code to your #header around line 202 in your css –
`#header {
margin: 0 auto;
overflow: hidden;
position: relative;
top: 30px;
width: 960px;
z-index: 1;
}`
….and then you’ll have to make the adjustments yourself to get it how you want it to appear.
