JSFiddle - React, Tailwind, and code Playground

by Kofod

HTML

<div style="position: relative; width: 688px; height: 500px; background: url('https://i.imgur.com/Gl3Cye4.png'); background-position: center center; background-repeat: no-repeat;">
<div id="sudokubokkusu" style="background: url('https://i.imgur.com/K3muUqw.png'); overflow: visible; position: relative; width: 324px; height: 324px; top: 55px; left: 35px; margin-right: -324px; margin-bottom: -324px; font-size: 0; text-align: center;"><!-- section 1 row 1 -->
<div class="colorselection" style="margin: 3px 0 0 0px;">&nbsp;</div>
<div class="colorselection">&nbsp;</div>
<div class="colorselection">&nbsp;</div>
<div class="colorselection unselectable" style="margin-left: 3px;">3</div>
<div class="colorselection">&nbsp;</div>
<div class="colorselection" style="background-color: #91b0da;">&nbsp;</div>
<div class="colorselection unselectable">4</div>
<div class="colorselection">&nbsp;</div>
<div class="colorselection">&nbsp;</div>
<br /> <!-- section 1 row 2 -->
<div class="colorselection unselectable" style="margin: 1px 0 0 0px;">2</div>
<div class="colorselection" style="background-color: #91b0da;">&nbsp;</div>
<div class="colorselection">&nbsp;</div>
<div class="colorselection" style="margin-left: 3px;">&nbsp;</div>
<div class="colorselection unselectable">6</div>
<div class="colorselection unselectable">1</div>
<div class="colorselection unselectable" style="margin-left: 3px;">9</div>
<div class="colorselection">&nbsp;</div>
<div class="colorselection">&nbsp;</div>
<br /> <!-- section 1 row 3 -->
<div class="colorselection" style="margin: 1px 0 0 0px;">&nbsp;</div>
<div class="colorselection">&nbsp;</div>
<div class="colorselection">&nbsp;</div>
<div class="colorselection" style="margin-left: 3px;">&nbsp;</div>
<div class="colorselection">&nbsp;</div>
<div class="colorselection unselectable">8</div>
<div class="colorselection unselectable" style="margin-left: 3px;">1</div>
<div class="colorselection">&nbsp;</div>
<div class="colorselection" style="background-color:...

JavaScript

<script>
var css = document.createElement( "style" );
css.type = 'text/css';
css.innerHTML = "ALL YOUR CSS HERE";
document.body.appendChild(css);
</script>