The name 'media' does not exist in the current context

The @ is a reserved character in Razor. But you can escape it using @@:

Example:  @@media screen and (max-width: 767px) {
      .sidenav {
        height: auto;
        padding: 15px;
      }





Best Regards
Jakaria Ahmed Shimul
#SSTEAM
we are making brotherhood
http://ssteam-bd.com/