JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#" onclick="setImage(this);"><img class="gallery" id="image1" src="image1.jpg" /></a>
<a href="#" onclick="setImage(this);"><img class="gallery" id="image2" src="image2.jpg" /></a>
<br/><br/>

<img id="ImageFrame" src="starter.jpg" width="400" />

JavaScript

function setImage(imgParent) {
    document.getElementById("ImageFrame").src = imgParent.childNodes[0].src;
}