<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" >
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div class="container">
<div class="row">
<div class="col-lg-3 options">
<div class="well well-sm">
<div class="page-header">
<h4>class options:</h4>
</div>
<ul class="list-group">
<li class="list-group-item">top-left</li>
<li class="list-group-item">top-center</li>
<li class="list-group-item">top-right</li>
<li class="list-group-item">bottom-left</li>
<li class="list-group-item">bottom-center</li>
<li class="list-group-item">bottom-right</li>
<li class="list-group-item">right-middle</li>
<li class="list-group-item">left-middle</li>
</ul>
</div>
</div>
<div class="mail-box top-right">
<i class="fa" onclick="mail(this)"></i>
<form name="form" class="content" novalidate>
<input type="text" class="form-control" placeholder="To">
<hr>
<input type="text" class="form-control" placeholder="Subject">
<textarea rows="7" class="form-control" placeholder="Say Something"></textarea>
<button type="button" class="btn send">Send</button>