JSFiddle - React, Tailwind, and code Playground

by Oliver_kh

HTML

<div class="s">Фон</div>

CSS

.s {
    background:white;
    width:100px;
    padding:5px;
    margin:2px;
    border:1px solid;
    text-align:center;
    cursor:pointer;
}

body {
    margin:0px;
    background:#fff;
    border:2px solid;
    height:5000px;
}
.over {
    background:#000;
}

JavaScript

$(function () {
       $('.s').click(function (e) {
                 e.preventDefault();
       $("body").toggleClass('over');

        });
   });