Which panel?
The code for each panel is a bit different, because you have to target the panel's name, but it is about the same as the code above. You just have to change the subject, "body", to the name of the panel.
Here are the names of the panels:
#music_panel
#stickers_panel
#blog_panel
#gallery_panel
#rss_panel
#visitors_panel
#messages_panel
#rankings_panel
#friends_panel
#wishlist_panel
#aboutme_panel
#url_panel
#cool_panel
#contact_panel
#interests_panel
#tagcloud_panel
#room_panel
#dev_panel
Example, if you want to change the About Me Panel, the code would be:
<style>
#aboutme_panel {
padding-top:200px;
}
</style>
Again, this is a guess, so please tell me if it works...