JSFiddle - React, Tailwind, and code Playground

HTML

<div id="button-pool">
    <button id="bt1" class="return">Button</button>
</div>

CSS

.return{
    background-color: yellow;
}
#bt1{
    border: 2px solid navy;
}

JavaScript

$(document).ready(function(){
    $("#bt1").click(function(){
       var newButton = $(this).clone();
        $("#button-pool").append(newButton);
    });
});