Lose “modern” (CSS3) styles when viewing on IIS vs VS Development Server
When I F5 using the Visual Studio development server (http://localhost:XXXX/application) all styles look fine. When I F5 using local IIS (http://localhost/application), styles still look fine. However, now, if I try to navigate to http://pc-name/application directly from the browser, I lose the modern CSS styles (i.e., rounded corners, opacity, etc...), while all other CSS and layout remains the same.
I'm using IIS v7.5.7600.16385
This would happen if you're in compatibility mode.
Check your internet settings.