Styling Jerome’s Keywords plugin

Hi,
noob question about CSS styling of plugin, please bear with me.

I have installed and actived Jerome’s Keywords Plugin, but can’t figure out how to change the way the Tags line appears on the homepage of the blog (http://www.beikey.net/mrs-deane). I want to add an extra line or space between the Tag line and the heading line of the post underneath.
I wrote and assigned a CSS style for this plugin (it came with no CSS of its own) defining margins and padding, but nothing changes. In the source code view of my browser I have seen that the tags are there, but they seem to be ignored. (I have removed them now.)

What I did in detail was to create a tag CSS style in the homepageleft section and called it “homepageleft t”, in analogy to styles like “homepageleft H1”). I then assigned the style to the plugin PHP-bit on the home.php by putting <t> and </t> around the line where the keywords plugin PHP sat. These ‘t’s show up in the code view brilliantly, but have no effect.

I am pretty new at CSS and PHP and have no real idea where to grab this plugin by the scruff of its neck to make it behave. Anybody know what I am doing wrong?