Breite meines Designgerüstes bzw. body?

#templateo_container {
width: 960px;
padding: 0 10px;
margin: 0 auto;
}

/* top panel */

#templatemo_top_panel {
clear: both;
width: 960px;
height: 110px;
padding: 10px 0;
}

...

#templatemo_content_wrapper {
clear: both;
width: 940px;
background: #3c3b3b;
padding: 10px;
margin-top: 10px;
}