JSFiddle - React, Tailwind, and code Playground

HTML

<div style="float:left;">
    <div class="div1">Div1</div>
    <div class="div2">Div2</div>
</div>
<div class="div3">Div3</div>

CSS

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