You want a 'boxed xanga'.
CODE
<!-- begin code provided by createblog.com -->
<DIV align="center" valign="middle" style="BORDER-RIGHT: blue 1px solid;
BORDER-TOP: blue 1px solid; FILTER: alpha(opacity=100); OVERFLOW: auto;
BORDER-LEFT: blue 1px solid; WIDTH: 850px; BORDER-BOTTOM: blue 1px solid;
HEIGHT: 470px; BACKGROUND-COLOR: clear">
<!-- end code provided by createblog.com -->
Or... I think that's what you want.