JSFiddle - React, Tailwind, and code Playground

HTML

<div id="ss"></div>
<select></select>
<input type="button" onclick="document.getElementById('ss').appendChild(document.createElement('select'))" />

JavaScript

document.body.addEventListener('click', function (e) {
    if (e.target.tagName.toLowerCase() == 'select') {
        alert('You clicked a select!');
    }
});