JSFiddle - React, Tailwind, and code Playground

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">
<br><br><br>
<div class="container">
    <div class="row">
        <div class="col-7">
            <div class="block">
                1<br><br><br><br>
            </div>
            <div class="block">
                3<br><br>
            </div>
        </div>
        <div class="col-5">
            <div class="block small">
                2<br><br><br>
            </div>
            <div class="block small">
                4<br><br><br><br><br><br><br><br>
            </div>
        </div>
    </div>
</div>

CSS

.block{
        font-size: 30px;
        padding: 10px;
        margin-bottom: 30px;
        background: red;
    }
    .block.small{
        background: green;
    }