Version:            (using KDE 4.1.0)
Compiler:          cc 
OS:                Linux
Installed from:    Ubuntu Packages

Bug entry:
http://www.gtalbot.org/BrowserBugsSection/MSIE7Bugs/#bug83

Screenshot (actual results):

http://browsershots.org/http://www.gtalbot.org/BrowserBugsSection/MSIE7Bugs/NestedMediaRules.html

http://browsershots.org/screenshots/d18196d33b39680029cf31ff8957cece/

http://api.browsershots.org/png/original/d1/d18196d33b39680029cf31ff8957cece.png

Testcase:
http://www.gtalbot.org/BrowserBugsSection/MSIE7Bugs/NestedMediaRules.html

Code explanation:

  @media all
  {
  p {background-color: white; color: green;}
  @media screen
    {
    p {background-color: white; color: red;}
    }
  }

  <p>This should be green.</p>

should be parsed as an error. The CSS validator will report such parsing error and will give

@media all  {
p {
background-color : white;
color : green;
}
} 

as resulting valid CSS information.

Konqueror does not parse correctly as the tested <p> is not green.

Regards, Gérard