JSFiddle - React, Tailwind, and code Playground

by kairavthakar2016

HTML

<div onclick="runscript(this);" id="abc" data-id="hello">
    <div class="insider"></div>
</div>
<div onclick="runscript(this);">
    <div class="insider"></div>
</div>

CSS

div {
    border: 1px solid black;
    height: 100px;
}
.insider {
    border: 3px solid green;
    height: 20px;  
}

JavaScript

function runscript(x) {
    x.firstElementChild.style.border = '1px solid red';
    alert(x.dataset.id);
}