font size

Between 12 and 16 percent of all adults (in America and Canada) are not blind but have difficulty seeing small objects especailly type. They are the readers of the large type book editions. The great majority of the people who have visual accessiblity problems with computers are NOT blind. The majority simply have what the medical profession describes as "low vision" or "limited vision." This is typically the situation where the individual has sight, but cannot discern small details or discriminate between letters of small fonts.

How can i make the font size smaller for the preface blocks. i have figured out how to make the checkmark smaller but would like to make the font smaller. here's my site http://plpinfo.org/

thx

libtechie