How to fix CSS Style unable to load in asp.net web application hosting in Local IIS

I got my desktop completely format and re-install today. then i need to install all the
development tools and re-configure all the settings.

One of odd thing is the layout of the page looks disarray and very weird.

I checked that the reference path to the style sheet is correct, and it was working fine before.

I need to come back to the Windows Feature Configuration Window and make some turn on and off try, finally i got the solution that I must include the Static Content feature under Common HTTP 
Features Section.








After I finish the change to enable this specific feature, the page layout looks the same as before