Question

As per http://www.w3schools.com/cssref/sel_last-child.asp
When i am trying to apply :last-child for my code, the last child color is applyin to all childs. Last child should apply blue color rest of childs to gray color.

http://jsfiddle.net/rARwn/

Answer 1

If i understand correct give last-child to th not to his child. Write like this:

th:last-child .inner{background-color:lightblue}

Check this http://jsfiddle.net/rARwn/3/