JSFiddle - React, Tailwind, and code Playground

HTML

<p id="1">paragraph <span>1</span>
</p>
<p id="2">paragraph <span>2</span>
</p>

JavaScript

document.getElementById("1").addEventListener("click", myfun);
document.getElementById("2").addEventListener("click", myfun);

function myfun(ev) {
    ev.target.style.backgroundColor = "yellow";
}