<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Expressions and Interpolations</title>
  <link rel="stylesheet" href="css/styles.css">
</head>
<body data-ng-app="myApp">
  <h1>
    Expressions and Interpolations
  </h1>
  <div data-ng-controller="MessageController as MessageCtrl">
    Message is: <strong data-ng-bind="MessageCtrl.name"></strong>
  </div>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Expressions and Interpolations</title>
</head>
<body>
  <h1>
    Expressions and Interpolations
  </h1>
  <div data-ng-controller="MessageController as MessageCtrl">
    Message is: <strong data-ng-bind="MessageCtrl.name"></strong>
  </div>
</body>
</html>

Delete useless link for css. Delete useless data-ng-app
Delete useless link for css. Delete useless  data-ng-app
