JSFiddle - React, Tailwind, and code Playground

HTML

<input type="checkbox">

CSS

input[type="checkbox"] {
    width: 100px;
    height: 100px;
    background: red;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}
input[type="checkbox"]:checked {
    background: blue;
}