JSFiddle - React, Tailwind, and code Playground

HTML

<table>
    <tr class="row-tab">
        <td><a href="#">TOP % GAINERS</a></td>
        <td><a href="#">TOP % LOSERS</a></td>
        <td><a href="#">TOP % LOSERSss</a></td>
    </tr>
</table>

CSS

td {
    padding: 5px;
}

td.subtab-selected {
    background: #ccaaaa;
}

JavaScript

$("td a").click(function() {
    var p = $(this).parents("tr");
    $("td", p).removeClass("subtab-selected").addClass("subtab-notselected");
    $(this).parent().addClass("subtab-selected");
    return false;
});