JSFiddle - React, Tailwind, and code Playground

HTML

<body>
    <div class="div1">Div1</div>
    <div class="div2">Div2</div>
    <div class="div3">Div3</div>
</body>

CSS

div.div1 {
        float: left;
        height: 400px;
        margin-right: 10px;
        width: 200px;
        background-color: blue;
    }
    div.div2 {
        clear: left;
        float: left;
        height: 15px;
        width: 200px;
        margin-top: 10px;
        background-color: red;
    }    
    div.div3 {
        height: 425px;
        overflow: hidden;
        background-color: green;
    }