IE7 - Details on CSS changes

Details on CSS changes in IE7

List of bugs fixed (mentioned in positioniseverything.net):

• Peekaboo Bug
  
• Internet Explorer and Expanding Box Problem
  
• Quirky Percentages
  
• Line-height bug
  
• Border Chaos
  
• Disappearing List-Background bug
  
• Guillotine Bug
  
• Unscrollable Content bug
  
• Duplicate Characters Bug
  
• IE and Italics
  
• Doubled Float-Margin bug
  
• Duplicate Indent bug
  
• Three pixel text jog
  
• Creeping Text bug
  
• Missing First letter bug
  
• Phantom box bug

Other bugs fixed:

• Overflow now works correctly! (That means boxes do not automatically grow any more.)
  
• Parser bugs: * html, _property and /**/ comment bug 
  
• Select control: CSS style-able and not always on top
  
• Auto-sizing of absolute positioned element with width:auto and right & left (great for 3 column layouts)
  
• Addressed many relative positioning issues
  
• Addressed many absolute positioned issues
  
• % calculations for height/width for abs positioned elements http://channel9.msdn.com/ShowPost.aspx?PostID=191182
  
• <?xml> prolog no longer causes quirks mode
  
• HTML element truly independent of the Body (now gets its own width, height etc.)
  
• 1 px dotted borders no longer render as dashed
  
• Bottom margin bug on hover does not collapse margins
  
• Several negative margin issues fixed
  
• Recalc issues including relative positioning and/or negative margins are fixed now
  
• CLSID attribute of <object> tag no longer limited to 128 characters
  
• :first-letter whitespace bug described in http://blogs.msdn.com/ie/archive/2005/09/02/460115.aspx fixed
  
• Descendant selector now works properly for grand children when combined with other selectors
  
• First-line and first-letter now applies when there is no space between word :first-line and opening brace {
  
• Pseudo-classes now are working as expected if selector is excluded
  
• The :link selector works now for anchor tag with href set to bookmark
  
• Addressed !important issues
  
• PositionIsEverything piefecta-rigid.htm now works
  
• List-item whitespace bug fixed
  
• Fixed Absolutely Buggy II
  
• Absolute positioned elements now use always correct containing block for positioning and size information
  
• Nested block elements now respect all overflow declarations (hidden, scroll, etc)
  
• Fixed the opposing offset problem (absolute positioned element whit all four top, bottom left and right are present)
  
• <a> tags nested within LI elements will no longer add extra bottom margin when hover occurs
  
• We no longer lose the image aspect ratio on refresh
  
• Cleaned up our ident parsing according to CSS2.1 rules
  
• Fixed parsing bugs for multi- class selectors and class selectors that are combined with id selectors
  
• And many more