[totaltec]

In main.css:

body
{
  height: 100%;
  background-color: #005fac;
  margin: 0;
  padding: 0;
  min-width: 870px;
  border: 0 none;
}

min-width is the important setting. Set this to whatever you like.

This will allow your page to resize down to this size.

I also like to set this max-width for page-container:

#page-container {
  min-height: 100%;
  min-width: 780px;
  max-width: 1024px;
  position: relative;
  margin-left: auto;
  margin-right: auto;
  background-color: #fff;
}

If you simply want a fixed width, just use width:960 px; or whatever value you want on both classes.

HTH,
-mike