<form class="form-signin" role="form" method="POST"
        action="/dfctc-2015/level-2/validate.php" autocomplete="off">
        <input name="username" type="text" class="form-control" placeholder="Username" autocomplete="off"><br/>
        <input name="password" type="password" class="form-control" placeholder="Password" autocomplete="off" required=""><br/>
<button class="btn btn-lg btn-primary btn-block" type="submit">Log In</button>
    </form>