JSFiddle - React, Tailwind, and code Playground
HTML
<style id="innerStyle"></style>
<div id="one" class="active" onclick="makeThisEnable(this.id)">1</div>
<div id="two" onclick="makeThisEnable(this.id)">2</div>
<div id="three" onclick="makeThisEnable(this.id)">3</div>
<div id="four" onclick="makeThisEnable(this.id)">4</div>
<div id="five" onclick="makeThisEnable(this.id)">5</div>
<br>
Click on box to select it.
CSS
div {width:10px;height:10px;margin:10px;
background:#ccc;cursor:pointer;padding:10px;
}
.active {
border:1px solid #00f;
}
.select {
border: 1px solid #f00;
}
JavaScript
function makeThisEnable(id) {
document.getElementById('innerStyle').innerHTML="div#"+id+" {border:1px solid #f00}";
}