<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<html>
<head>
<title>Login</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="CSS/MiStilo.css" rel="stylesheet" type="text/css">
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" ></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
</head>
<body>
<section class="container-fluid">
<div class="row justify-content-center ">
<div class="col-3 rounded border shadow p-3 mb-5 bg-white " id="col-Login" >
<p class="text-center"><strong>Login Admin</strong></p>
<form class="login-form" method="POST">
<div class="form-group" id="errorLogin" >
</div>
<div class="form-group">
<label >Username</label>
<input type="text" id="user" name="user" class="form-control" placeholder="Usuario" required>
</div>
<div class="form-group">
<label >Password</label>
<input type="password" class="form-control" id="password" name="password" placeholder="Password" required>
</div>
<div class="form-group">
<button type="submit" class="btn btn-primary float-right">Submit</button>
</div>