In windows where you have a minimum of content, or for design reasons do not want the browser scrollbar to show, you can remove the scrollbar by adding scroll="no" to the page body tag, like this:
Code
<body scroll="no">
A perhaps more sensible approach in most cases, however, is to use scroll="auto" instead. This removes the scrollbar from the page when there is no need for it; but shows the scrollbar when content exceeds the length of the window. Thus: