<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>
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.1.0/css/all.css" integrity="sha384-lKuwvrZot6UHsBSfcMvOkWwlCMgc0TaWr+30HWe3a4ltaBwTZhyTEggF5tJv8tbt" crossorigin="anonymous">
<div class="container">
<h2 class="text-center">Contac Form</h2>
<div class="row justify-content-center">
<div class="col-12 col-md-8 col-lg-6 pb-5">
<form action="mail.php" method="post">
<div class="card border-primary rounded-0">
<div class="card-header p-0">
<div class="bg-info text-white text-center py-2">
<h3><i class="fa fa-envelope"></i> Contactanos</h3>
<p class="m-0">Con gusto te ayudaremos</p>
</div>
</div>
<div class="card-body p-3">
<div class="form-group">
<div class="input-group mb-2">
<div class="input-group-prepend">
<div class="input-group-text"><i class="fa fa-user text-info"></i></div>
</div>
<input type="text" class="form-control" id="nombre" name="nombre" placeholder="Nombre y Apellido" required>
</div>
</div>
<div class="form-group">
<div class="input-group mb-2">
<div class="input-group-prepend">
<div class="input-group-text"><i class="fa fa-envelope text-info"></i></div>
