Summary: specifying font size in pixels (px) diminishes
           Product: MediaWiki
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: accessibility
          Severity: normal
          Priority: Normal
         Component: Vector Skin

#    Sizing fonts and sizing by font metrics

The only way the WWW author has to know the what size of type is well readable
by a user is the default size selected by the user. When a font is displayed at
a size smaller than the user's default font size, that creates a usability and
accessibility problem. This is more widespread a problem than only affecting
those who's eyesight is so poor that they count as disabled.

Screen resolution, in the sense of dots per inch (DPI), will determine how much
space on the display a glyph occupies, making measurements in pixels (px) an
especially ineffective unit to use in specifying typeface size.

##    Units and methods for typeface sizing
Relevant information about the
(CSS properties is

See also:
(Chapter 4 : The amazing em unit and other best

The Wikipedia entry on em is illuminating.

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