Freeplane

I build mind maps in Freeplane, an open source mind mapping tool.  I can export the maps to a java format with a routine provided in the software.    Here you will find a sample map: http://electronicparalegal.com/INSURANCE/Insurance%20Map%202024-8-4%20.mm.  Using File->Export->XHTML(Javascript Version) I get the following: http://electronicparalegal.com/INSURANCE/Insurance%20Map%202024-8-4_Java.html  

This download created a folder named as follows: Insurance Map 2024-8-4_Java .html_files.  In the folder you will find the css file: treestyles.css.  

I want to adjust the treestyles.css file so that the document will display horizontially, with a centered line connecting the items, with a rounded corner box around each item so the javascript file will display like the mind map does.  I also want the popup up box to be moved close enough to the item so that the user can mouse over the box to keep it open as I will be putting links inside the popup box.  I would like the treestyles.css file to be saved in a copy of Freeplane so that it will automatically export to the new style, if possible.