#3687 "light" CSS forces serif font

[Christopher K Davis]

When using "Simple Design", I get a small, unreadable, serif font for text
rather than my configured default (serif) font.

http://images.slashdot.org/base.css

This style sheet sets the text size to 82% on a 150% line spacing.
(Irritating, since I actually do know how to set my default font size to look
reasonable on my screen, but not fatal until it interacts with the next style
sheet.)

http://images.slashdot.org/slashcode_lite.css

This style sheet sets "font-family: serif" for body and most divs.

This means I wind up with an 82% size, serif font rather than a 100% size,
default font.

Preferably, this would be a settable preference in the system; at the
minimum, however, it would be preferable to remove "font-family: serif"
and add "font: 100%" to the slashcode_lite CSS.