<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/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">
<div class="col-md-3">
<div class="card">
<div class="card-body">
<div class="row">
<div class="col-md-12">
<div class="card bg-light mb-3">
<div class="card-header">Left Sidebar</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-9">
<div class="card">
<div class="card-body">
<div class="row">
<div class="col-md-12">
<div class="card bg-light">
<div class="card-header">Sample Page</div>
</div>
</div>
</div>
<div class="row mb-3">
<div class="col-md-12">
<div class="card">
<div class="card-body">
<button type="button" class="btn btn-sm btn-primary">Go Back</button>
<button type="button" class="btn btn-sm btn-primary">Add New</button>
