Custom Digg Digg help

How do you add a floating bar to a specific landing page? The landing page program I use is Premise and they have options to add custom CSS and custom functions for each landing page. In Digg Digg I noticed the custom options but every time I put them in the custom functions it adds the bar to the top site wide, horizontally.

What do I need to put in the custom code for the Landing page to make it specific to just that page?

The landing page I’m referencing is http://www.nateanglin.com/walking-101/

Thanks for your help.