Twitter widget squashed in HTML Viewer

I am using an HTMLViewer on a pop-up window to display a twitter widget on a news page from our website when our program starts.
The widget looks OK in my browser, but it is squashed vertically in the HTMLViewer.
The javascript code for the widget was generated in my Settings page at Twitter.

Anyone have an idea? Thanks.

How do you load the CSS file for the html?

Like this:

<style type="text/css"> body {font-family: helvetica, arial} img {border-style: none;} </style>