@media only screen and (min-width: 980px) {
   .my-which {
      width:200px;
    }
    .my-heading {font-size: 50px !important;}

    .my-logo {
      height: 20px;
     }
  }




  @media only screen and (max-width: 980px) {
    .my-which {
       width:100px;
     }

   }