I have two suggestions.
First, do you use Bootstrap 2.3.2 from your link above? Perhaps you can more easily solve your problems using the new scaffolds that have boostrap 3.0 (and higher). This is a kind of pain for updating your site, but there are automatic converters, and the new system MUCH works better and can help.
Secondly, another CSS trick you should pay attention to is the font and line weight. Font weight can make your text thinner / thicker (grades 100, 200, 300, 400, etc.). You may be able to make the font thinner, the linear level lower, but the overall font is larger, which will be "compact." If you didn’t know it was worth a try.
font-weight: 200; line-height: 30px;
Gu3miles
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