JSFiddle - React, Tailwind, and code Playground

HTML

<div id="slider"></div>

  <button id="left">RIGHT</button>
 <input type="button" value="name" id="names">

 <div id="blo"></div>

CSS

#slider {
            background: black;
            width: 300px;
            height: 300px;
            position: relative;
            left: 0px;
          }

          #blo {
          	position: absolute;
          	top: 350px;
          	width: 80px;
          	height: 80px;
          	border: 2px solid black;
          }

JavaScript

tor = 0;
document.getElementById('left').onclick = function left() {
var any = document.getElementById('slider');
tor += 100;
any.style.left = tor + 'px';
};  //ВПРАВО

document.getElementById('names').onclick = function() {
var ewq = document.getElementById('blo');
tor += 100;
ewq.style.left = tor + 'px';
		};