This is in the default proportional font.

And this is in the default fixed width font

Standard Fonts

These are browser dependent, though a decent browser will allow them to be changed.

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Windows Core Fonts

Freely available Microsoft truetype fonts. These should be present on most Windows and Mac systems, and are freely available for installation on Unix systems that support truetype fonts. Note that Windows XP does not include Andale Mono. Verdana and Georgia are designed for screen viewing, and work well even at small sizes: Arial Verdana Times New Roman Georgia

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Other Windows Fonts

Some Linux Fonts

Some Mac Fonts