JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="elm1">1</div>
    <div class="elm2">2</div>
</div>

CSS

.container {
    width: 100%;
    height: 1000px;
    position: relative;
    background: #eee;
}

.container div {
    height: 0;
    position: absolute;
    background: #ccc;
}

.elm1 {
    width: 20%;
    padding-bottom: 20%;
    top: 20%;
    left: 5%;
}

.elm2 {
    width: 30%;
    padding-bottom: 30%;
    top: 40%;
    right: 10%;
}