ustify-content: center;
      justify-content: center;
    }
    button {
      display: inline-block;
      margin: auto;
      width: auto;
    }
  </style>
</head>
<body>
    <nav>
      <h1>Login</h1>    
    </nav>
    <article class='current'>
      <section>
        <h2>You must log in to play</h2>
        <ul ui-implements='form' class='list'>
          <li class='comp'>
            <div>
              <label for='userName'>User name:</label>
            </div>
            <aside>
              <inp