JSFiddle - React, Tailwind, and code Playground

HTML

<div class="slidershow">
    </div>

CSS

.slidershow {
        width: 400px;
        height: 300px;
        transition: 0.2s;
    }

JavaScript

const slideEl = document.querySelector('.slidershow');
    	const arrSlide = ['http://placekitten.com/400/300','http://placekitten.com/400/400','http://placekitten.com/400/500'];
    	slideEl.style.background = `url(${arrSlide[0]})`;
    	let current = 0;
    	function chSlide(){
    		slideEl.style.background = `url(${arrSlide[++current % arrSlide.length]}) center/cover`;
    		setTimeout(chSlide, 2000);
    	}
    	setTimeout(chSlide(), 2000);