<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>
<div class="container">
<div class="row m-4">
<div class="col-4">
<div class="login-card-purple p-3 shadow-lg rounded">
<div class="pt-3">
<h2 class="text-white ">Sign In | Purple</h2>
</div>
<form class="mt-5">
<div class="form-group">
<input type="email"
class="form-control form-control-sm bg-light"
placeholder="Email Id">
</div>
<div class="form-group">
<input type="password"
class="form-control form-control-sm bg-light"
placeholder="Password">
</div>
<div class="form-group form-check">
<input type="checkbox" class="form-check-input" id="rememberCheckBox">
<label class="form-check-label text-light" for="rememberCheckBox">Remember me?</label>
</div>
<div class="mt-5">
<button class="btn btn-sm btn-light col">
Login
</button>
</div>