How to use only CSS to round my div tag area's corners?

Question

I use div tags to define areas within my web pages. I set all the obvious things like background, size, padding, etc. But it is all very square.

How can I use

Answer 1

Here is a simple HTML document to demo how to achieve it through only CSS.

    
        
    
    
            
            

Content Area Content Area Content Area Content Area Content Area Content Area 
Content Area Content Area Content Area Content Area Content Area Content Area 
Content Area Content Area Content Area Content Area Content Area Content Area 
            
            
    

Link to Original: http://blog.yosle.com/2007/09/20/css-round-corners/