JSFiddle - React, Tailwind, and code Playground

HTML

<ul id="list">
    <li>List 1</li>
    <li>List 2</li>
    <li>List 3</li>
</ul>
<br>
<ul id="list2">
    <li>List 1</li>
    <li>List 2</li>
    <li>List 3</li>
</ul>

JavaScript

var ul = $("ul"),
li = $("li", ul);                    

ul.each(function(){
    $(this).css("bakground","red");
    $(this).css("padding","10px");
    li.each(function(){
        $(this).css("background","blue");
    });
});