html - CSS Rule: Give style to all with children

I'm trying to give a style to all

with children and not to those with no
children.
Or, give style to all, and give a different style to those with no
children.
The structure is similar to
this

            

 


 
Don't style
            me
 
Don't style me

            
 
Don't style me

            
Don't style me
 


            

 
Don't style me