index.php

<html>
<head>
  <title> GudangKoding - Simple Login and Register with PHP </title>
  <link rel="stylesheet" href="bootstrap/css/bootstrap.css" />
  <link rel="stylesheet" href="bootstrap/css/bootstrap.min.css" />
  <script language="text/javascript" src="bootstrap/js/bootstrap.js"></script>
  <script language="text/javascript" src="bootstrap/js/bootstrap..min.js"></script>
</head>
<body style="background-color: gray">
  <div class="row">
<div class="container">
  <div class="row">
    <div align="center">
      <h1> GUDANG KODING </h1>
      <a href="http://www.gudang-koding.ga/" target="_blank"> www.gudang-koding.ga </a> <br>
      Kumpulan Tutorial Programming <hr>
      <div class="panel panel-success" style="width: 50%; margin-top: 50px">
        <div class="panel-heading">
          Login Form
        </div>
        <div class="panel-body">
          <div align="left">
          <form action="validasi.php" method="POST">
          <div class="form-group">
            <label for="username">Username :</label>
            <input type="text" name="username" class="form-control" id="username" required>
          </div>
          <div class="form-group">
            <label for="password">Password:</label>
            <input type="password" name="password" class="form-control" id="password" required>
          </div>
          <button type="submit" class="btn btn-default">Login</button>
          <center>
            Belum Punya Akun ? Register <a href="register.php">disini</a>.
          </center>
        </form>
      </div>
        </div>
      </div>
  </div>
  </div>
</div>
</div>
</body>
</html>