JSFiddle - React, Tailwind, and code Playground

HTML

<div class="main">
    <div class="free"></div>
</div>

CSS

html, body {
    height: 100%;
}
body {
 position: relative;
}
.main {
    background-color: gray;
    position: absolute;
    height: 100%;
    width: 100%;
}
.free {
    position: absolute;
    width: 100px;
    height: 100px;
    left: -3000px;
    top: -3000px;
    background-color: pink;
}