JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
<li>Coffee</li>
<li>Milk</li>
<li>Butter</li>
</ul>
<hr>
<ul>
<li>Java</li>
<li>C#</li>
<li>English</li>
</ul>

CSS

.listnumber {
    display: inline-block;
    padding-right: 3px;
}

JavaScript

$("ul").each(function() {
   $(this).find("li").each(function(count) {
      $(this)
        .css("list-style-type", "none")
        .prepend("<div class='listnumber'>" + (count + 1) + "</div>");
   })
})