JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="yellow"></div>
    <div class="red"></div>
    <div class="green"></div>
    <br>
    <div class="pink"></div>
    <div class="orange"></div>
    <div class="black"></div>
    <div class="white"></div>
</div>

CSS

.container div {
   width: 160px;
   height: 20px;    
}

JavaScript

var $container = $("div.container");

setInterval(function(){
    $container.html(shuffle($container.children().get()));
}, 500);

$("div.container div").each(function(){
    var color = $(this).attr("class");
    $(this).css({backgroundColor: color});
});

function shuffle(o){
    for(var j, x, i = o.length; i; j = parseInt(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
    return o;
};