Html font is discouraged and obsolete, since it could be removed at any time. Often, it indicates that the text is a sequence of literal characters, very important and variable. Html font can be an address, definition or something else by using italic, underline, strike through, superscript and teletype. It makes the text display in the default font or in the specified font. And the format text changes color with 7 sizes where 7 is the largest size and 1 is the smallest.