JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrapper" style="margin: 0 auto; width: 800px; position: relative;">

   <canvas id="canvas" style="border: solid;" width="800" height="450" align="center"></canvas>

   <div class="controls" style="position: absolute; top:0; left:0;">

       <h2>Controls</h2>

       <button class="btn" onclick="initBuffers(1)">Man</button>

       <br><br>Use the mouse to rotate the view.

   </div>

</div>