Alignment Twenty Eleven theme on ipad

Hello all,

I managed to make my website http://www.timoelshof.nl Ipad friendy with this code:

/* =Responsive Structure
———————————————– */
@media (max-width: 800px) {
/* keep the sidebar – this edit is for right sidebar only */
#page {
min-width: 1000px;
}
.right-sidebar #main #content {
margin: 0 29% 0 1%;
width: 70%;
}
.right-sidebar #main #secondary {
float: right;
margin: 0 2% 0 0%;
width: 24%;
}
}

Now I want to move/align the whole website (#primary) to the left so the website will become more centered. Can somebody help?