Buttom at bottom

by Guilherme de Jesus Santos

HTML

<script src="//code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<link rel="stylesheet" href="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<div id="container" class='row '>
    <div class='col-sm-9 col-md-6 col-lg-8 bg-danger'>
    Lorem ipsum
    <br />
    Lorem ipsum
    <br />
    Lorem ipsum
    <br />
    Lorem ipsum
    <br />
        Lorem ipsum
    <br />
    Lorem ipsum
    <br />
        Lorem ipsum
    <br />
    Lorem ipsum
    <br />    Lorem ipsum
    <br />
    Lorem ipsum
    <br />
    </div>
    <div class='col-sm-3 col-md-6 col-lg-4 bg-success d-flex'>
    Lorem ipsum
    <br />
       <button id="bot" class=" align-self-end">
       Button at Bottom!
       </button>
    </div>
</div>