var app = angular.module('plunker', ['ngMessages']);
<!DOCTYPE html>
<html ng-app="plunker">
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>
document.write('<base href="' + document.location + '" />');
</script>
<link rel="stylesheet" href="style.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.5/angular.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.5/angular-messages.js"></script>
<script src="app.js"></script>
</head>
<body>
<div id="header">
<!-- I want error messages to show up here -->
</div>
<form name="myForm">
<label>Email</label>
<input name="myEmail" type="email" ng-model="user.email" required="" />
<div ng-messages="myForm.myEmail.$error">
<div ng-message="required">required</div>
<div ng-message="email">invalid email</div>
</div>
</form>
<p>Your email address is: {{user.email}}</p>
</body>
</html>
/* Put your css in here */