Overiding [class] css declaration

[invose]

I have CSS in a theme that I am using that I need to override only in a specific div. The CSS is:\[code\][class] { list-style: none outside none; overflow: hidden; padding: 0;}\[/code\]What I need to do in essence is:\[code\]#myspecialdiv [class] { overflow: auto;}\[/code\]What is the best way to do this? Is it possible?Thanks in advance for the help.