index.html

<!DOCTYPE html>
<html>
<head>
    <title>Simple Login Form Template | Tutorial Jinni</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link href='//fonts.googleapis.com/css?family=Open+Sans:700,600' rel='stylesheet' type='text/css'>
    <link rel="stylesheet" href="styles.css">
</head>
<body>
    <div id="absoluteCenteredDiv">
        <form action="/login" method="POST">
            <div class="box">
                <h1>Identificate</h1>
                <input class="username" name="username" id="Nombre" type="text" placeholder="Nombre de usuario" />
                <input class="username" name="contra" id="contra" type="password" placeholder="Contraseña" />
                <div><button type="submit" class="button">Iniciar sesión</button></div>
                            <!--<button type="submit" class="button">Iniciar sesión</button> -->
            </div>
        </form>
        <p>¿Olvidaste tu password? <a class="fpwd" href="#">¡Has click aquí!</a></p>
    </div>        
</body>
</html>