#page {} / #page-wide

These elements are what constrains your contents width. For the Standard and Vertical layouts it uses the #page and for all of the others it uses #page-wide.


#page {
	width: 780px;
	margin: 0px auto;

#page-wide {
	width: 980px;
	margin: 0px auto;

If you edit the width of the site make sure you remember to change the width of .narrowcolumn to compensate either larger or small width.


Companion / Child Theme Tip

For designing your site whatever background you put into the #page and #page-wide will fill your entire sites content area.

#page, #page-wide {
	background: #ccc;