Assertions:
The effect of BASEFONT SIZE in Internet Explorer 1.0-2.0,
Netscape 1.0 and Opera is to serve as a starting point in calculating relative
FONT SIZE change values. Later versions of Internet Explorer and Netscape 1.1-4.x
allow the setting of a default font size for contained text.
Normal relative font size changes -3 -> +3, with no BASEFONT modification:
Filler text
Font size=-3
Font size=-2
Font size=-1
Font size=+0
Font size=+1
Font size=+2
Font size=+3
Filler text
BASEFONT SIZE=6 encapsulating relative font size changes -3 -> +3:
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basefont size=6
Font size=-3
Font size=-2
Font size=-1
Font size=+0
Font size=+1
Font size=+2
Font size=+3
basefont size=6
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