JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"></script>
<ul id="main-menu">
        <li>
            <a href="#">
                <i class="fa fa-building-o" aria-hidden="true"></i>
                Private Limited
                <i class="fa fa-caret-down"></i>
            </a>
            <ul class="submenu">
                <li><a href="#0">Company</a></li>
                <li><a href="#0">Contact</a></li>
                <li><a href="#0">Industry</a></li>
            </ul>
        </li></ ul>

JavaScript

$("#main-menu li").mouseover(function(){ $("#main-menu a:eq(0)").css({'color':'green','font-weight':'bold'});});
$("#main-menu li").mouseout(function(){ $("#main-menu a:eq(0)").removeAttr("style");});