Show logo with absolute position

Hi

I am using absolute position for my logo and it was working great. (css code below)
Today I updated to version 1.7.7 and it is not showing correct anymore and showing on top of the menu. Any advice you can give me to have it aligned correctly left inside the 1240px width box next to the menu?

.site-logo {
display: inline-block;
max-width: 100%;
position: absolute;
top:0;
z-index:1;

}

I have attached link

Thanks

Edwin