I love these!  Since I put them on my wall I don't use the Cards or Foldouts any more. The best part: always knowing where they are, no matter how messy the desk is. I get answers in 2 seconds instead of 5.  So for me these charts are the world's fastest references.
   
   

• HTML examples:
  • forms
  • tables
  • lists
  • image maps
  • favicon
  • special characters
  • XML overhead
• CSS examples:
  • color
  • font
  • layout
• Bubble help
• Five Style Schemes:
  how CSS plugs into
  HTML
• Form-submission
  example

• All HTML tags
  at a glance
• Table parts, colors
• Image alignment
• W3C-deprecated
  features cross-
  referenced to
  CSS alternatives
• Browser support
  indications for top
  seven browsers:
  • Internet Explorer
  • Netscape
  • Mozilla
  • AOL
  • Opera
  • Safari
  • Konqueror
• Color-coded W3C,
  IE, Netscape
  support
• Legend for both
  Tag and Style Charts

• All CSS2
  properties
  at a glance
• Browser support
  indications for top
  seven browsers (see
  above Tag Chart)
• Color-coded W3C,
  IE, Netscape
  support
• Colors, fonts, layout,
  audio browser
  settings, positioning
• Very brief example
  of three ways CSS
  can appear in HTML
• Functional Index
  for both Tag and
  Style Charts

• All special
  characters
  for HTML 4.01 that
  you don't see on a
  standard keyboard
• Alpha codes:
  ©
  
• Number codes:
  ©
• PC Alt-keystrokes
• Color-coded W3C,
  IE, Netscape
  support
• Indications for AOL,
  Mozilla, Opera,
  Safari, Konqueror
• Indications for
  Windows, Mac and
  Linux where there's a
  dependency on the
  operating system