JSFiddle - React, Tailwind, and code Playground

HTML

<div id="content">
    <canvas id="myCanvas">Your browser doesnt support canvas tag</canvas>
</div>

CSS

#content {
        width: 95%;
        height: 95%;
        margin: auto;
    }
    #myCanvas {
        width: 100%;
        height: 100%;
        border: 1px solid black;
        background: black;
    }