JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="///ajax.googleapis.com/ajax/libs/jqueryui/1.8.18/themes/base/jquery-ui.css">
<li class="active">
    <a href="index.html" title="Homepage">Homepage<i class="icon-home"></i></a>
</li>

CSS

.icon-white {
    display: none;
}

JavaScript

$(document).ready(function() {
    $('li.active').hover(
    function() {
        $('a', this).addClass('icon-white');
    }, function() {
        $('a', this).removeClass('icon-white');
    });
});