Touch Nook disregarding word-spacing

[Indigo121]

I'm trying to make my Nook-Touch use the entire width of the screen, which is more than the built-in margin selection permits me. This is so I can read as many words as possible in a single line for a better reading experience.

To do this I edit the Epub's CSS to make them have negative margins like so-
margin-left: -3pt;
margin-right: -3pt;

This works. The problem is that the Nook simply spaces out the words more instead of cramming more into the line. i.e the number of words are the same in each line, the spaces just grow.

I've tried defining word spacing in the Stylesheet but the Nook seems to be ignoring them. like so-
word-spacing: -0.1em;

Does anybody have an idea is this is possible?