text: ;(function () {
      'use strict';
  
      angular
          .module('app')
          .controller('HeaderCtrl', HeaderCtrl);
  
      HeaderCtrl.$inject = ['$scope'];
      function HeaderCtrl($scope) {
          var vm = this;
          vm.openNav = openNav;
          vm.closeNav = closeNav;
          document.getElementById("mySidenav").style.width = "0";
          function openNav() {
              document.getElementById("mySidenav").style.width = "300px";
          }
          function closeNav() {
              document.getElementById("mySidenav").style.width = "0";
          }
      }
  
  })();
  