The FONT command is used to change the appearance of text by changing the font, size, and color of the text. The SIZE attribute can have an absolute value from 1, the smallest, to 7, the largest, or a relative value. When using relative values the font size changes in regard to what the Basefont.
This text is the normal size,<FONT SIZE="+1"> and this text is +1.</FONT>
This text is the normal size, and this text is +1.
The COLOR attribute is used to change the text color. This can be done with either a hex value or by using color names, but the names are supported as widely.
See the Color Codes section for many hex values.
In both of these cases the area that is changed is stopped by using the </FONT> tag.
For more info on changing text see the Manipulating Text tutorial.