JSFiddle - React, Tailwind, and code Playground

HTML

<ul id="menu">
    <li value="1" id="home" class="tab_selected"><a href="home.php">Home</a></li>
    <li id="portfolio"><a href="portfolio.php">Portfolio</a></li>
    <li id="music"><a href="music.php">Music</a></li>
    <li id="video"><a href="video.php">Video</a></li>
    <li id="photo"><a href="photo.php">Photo</a></li>
</ul>

JavaScript

if ($(this).parent().attr('value') == 1) {
        $(this).css("background-color", "#4B84AF");

        alert($(this).parent().attr('value'));
    }