Added DIV(outerwrapper).
Added "back to top" button.
Removed the DIV(articles), as it was serving the same purpose as the
DIV(innerwrapper) but not adding anything new.
Added DIV(outerwrapper)
-Changed ID wrapper -> innerwrapper.
-Added margin and padding of value 0 to body.
-Corrected syntax of value for height,width,font-size (unit was missing).
- Had added max-height property to the innerwrapper id. Removed it.:wq