<!DOCTYPE html>
<html ng-app="webapp">

<head>
  <link rel="stylesheet" href="https://rawgit.com/angular/bower-material/master/angular-material.min.css">
  <link rel="stylesheet" href="style.css" />

  <!-- Angular Material Dependencies -->
  <script src="//cdn.jsdelivr.net/hammerjs/2.0.4/hammer.min.js"></script>
  <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.8/angular.min.js"></script>
  <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.8/angular-animate.min.js"></script>
  <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.8/angular-aria.min.js"></script>

  <!-- Use dev version of Angular Material -->
  <script src="https://rawgit.com/angular/bower-material/master/angular-material.min.js"></script>

  <script src="script.js"></script>
</head>

<body ng-controller="AppCtrl">

  <md-input-container>
    <label>Vegetables</label>
    <md-select ng-model="selectedVegetables" md-on-close="clearSearchTerm()" data-md-container-class="selectdemoSelectHeader" multiple="">
      <md-select-header class="demo-select-header">
        <input ng-model="searchTerm" type="search" placeholder="Search for a vegetable.." class="demo-header-searchbox _md-text">
      </md-select-header>
      <md-optgroup label="vegetables">
        <md-option ng-value="vegetable" ng-repeat="vegetable in vegetables |
          filter:searchTerm">{{vegetable}}</md-option>
      </md-optgroup>
    </md-select>
  </md-input-container>
</body>

</html>
// Code goes here

angular.module('webapp', ['ngMaterial'])
  .controller('AppCtrl', function($scope) {
    $scope.vegetables =[ 'Brinjal', 'Pumpkin', 'Potato' ];
  });
/* Styles go here */

.face {
  width: 48px;
  margin: 16px;
  border-radius: 48px;
  border: 1px solid #ddd;
}