JSFiddle - React, Tailwind, and code Playground
HTML
<ul>
<li class="selected" data-tab-id="0"></li>
<li data-tab-id="12">...</li>
<li data-tab-id="3">...</li>
<li data-tab-id="15">...</li>
<li data-tab-id="7">...</li>
</ul>
CSS
.selected{
background-color:red;
}
JavaScript
$('li').removeClass('selected');
$('li[data-tab-id=15]').addClass('selected');