JSFiddle - React, Tailwind, and code Playground

HTML

<div class="div1">
    <div class="div2">
        <div class="div3">
            <div class="div-last"></div>
        </div>
    </div>
</div>

CSS

.div1 {
    width: 700px;
    height: 700px;
    background-color: #000;
    position: relative;
}

.div2 {
    width: 600px;
    height: 600px;
    background-color: #333;
    position: relative;
    top: 20px;
    left: 20px;
}

.div3 {
    width: 500px;
    height: 500px;
    background-color: #777;
    position: absolute;
    right: 0;
    top: 30px;
}

.div-last {
    width: 400px;
    height: 400px;
    background-color: #AAA;
    position: absolute;
    bottom: 20px;
    left: 20px;
}