JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <div><span>Span 1</span>
    </div>
    <div><span id="foo">Span 2</span>
    </div>
</div>

CSS

div {
    padding: 10px;
}

JavaScript

document.id('foo').getParent('div').setStyle('border', '2px solid #ccf').addEvent('click', function(){
   alert(this.get('text')); 
});;