JSFiddle - React, Tailwind, and code Playground

HTML

<div id="dvExpProvHolder" class="hidOverflow innerDivCenter">
    <ul class="uSPStyle" id="uSPStyle">
        <li class="setRelative">	<a class="tfLink clickMe current" title="Care" data-toggle=".tfLink1" id="" href="javascript:void(0);"><img src="theImages/imgMenu.png" id="imgFirstM" class="imgExpCol" />Care</a>

            <ul class="uSPStyle uSPInner" style="width: 80%;">
                <li><a class="tfLink clickMe" title="This is sub" data-toggle=".tf1SLink1" href="javascript:void(0);">This is sub</a>
                </li>
            </ul>
        </li>
        <li>	<a class="tfLink clickMe" title="Breast Cancer" data-toggle=".tfLink2" href="javascript:void(0);"><img src="theImages/imgMenu.png" id="imgFirstM" class="imgExpCol" />BC</a>

            <ul class="uSPStyle uSPInner" style="width: 80%;">
                <li><a class="tfLink clickMe" title="OUR" data-toggle=".tf1SLink2" href="javascript:void(0);">OUR LINK</a>
                </li>
            </ul>
        </li>
        <li>	<a class="tfLink clickMe" title="About" data-toggle=".tfLink3" href="javascript:void(0);">About</a>

        </li>
        <li>	<a class="tfLink clickMe" title="Anxiety" data-toggle=".tfLink4" href="javascript:void(0);">Anxiety</a>

        </li>
        <li>	<a class="tfLink clickMe" title="Services" data-toggle=".tfLink5" href="javascript:void(0);">Services</a>

        </li>
    </ul>
</div>
<div class="tfLink1 dispArtBody">
    <tfText01>This is for first link</tfText01>
</div>
<div class="tf1SLink1 dispArtBody hideContent">
    <tf1SText01>This is for first link sublink 1</tf1SText01>
</div>
<div class="tfLink2 dispArtBody hideContent">
    <tfText02>This is for second link</tfText02>
</div>
<div class="tf1SLink2 dispArtBody hideContent">
    <tf1SText02>This is for second link sublink 1</tf1SText02>
</div>
<div class="tfLink3 dispArtBody hideContent">
    <tfText03>This is for third link</tfText03>
</div>
<div class=" tfLink4 dispArtBody hideContent">
    <tfText04>This...

CSS

* {
    padding: 0;
    margin: 0;
    outline: 0;
    /*text-decoration: none;*/
    border: 0;
}
body {
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    font-family:'Verdana', 'Tahoma', 'Arial';
    font-size: small;
    font-weight: normal;
    color: #333;
    text-rendering: optimizeLegibility;
    text-decoration: none;
}
html {
    background: #FFF no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    font-family:'Verdana', 'Tahoma', 'Arial';
    font-size: small;
    font-weight: normal;
    color: #333;
    text-decoration: none;
}
img {
    border: 0;
    border-style: none;
}
.imgExpCol {
    width: 13px;
    height: 13px;
    position: absolute;
    left: 1%;
    top: 2%;
    z-index: 1000;
}
.brClear {
    clear: both;
}
.brClearLeft {
    clear: left;
}
.hideContent {
    display: none;
}
.innerDivCenter {
    margin: 0 auto;
}
ul.uSPStyle {
    list-style-type: none;
    width: 95%;
    margin: 0px;
    padding: 0px;
    margin: 0 auto;
}
ul.uSPStyle li {
    display: block;
    margin-bottom: 1px;
    background: #FFF;
    text-transform: uppercase;
    border-bottom: 1px solid #D5D5D5;
}
ul.uSPStyle li a.current, ul.uSPStyle li a#current, ul.uSPStyle li a:hover {
    border-left: 4px solid #E55302;
    border-right: 4px solid #E55302;
    margin-left: -4px;
    margin-right: -4px;
    color: #e67e22;
    box-sizing: border-box;
    background: #FFEEE5;
}
ul.uSPStyle li a {
    padding: 10px 20px;
    line-height: 20px;
    text-decoration: none;
    display: block;
    position: relative;
    color: #175FA0;
    margin-left: 0px;
    margin-right: 0px;
    transition: color 300ms linear;
    -o-transition: color 300ms linear;
    -ms-transition: color 300ms linear;
    -moz-transition: color 300ms linear;
    -webkit-transition: color 300ms...

JavaScript

$(function () {
    $('.myButton').click(function () {
        var vStr = "1.1";
        var vULSize = $("#uSPStyle li:not(li li)").size();
        var vULSubSize;
        if (vStr.indexOf('.') !== -1) {
            var vSplit = vStr.split(".");
            var vFirst = vSplit[0];
            var vSecond = vSplit[1];

            console.log(vFirst);
            console.log(vSecond);

            console.log(vULSize);
            if (vFirst <= vULSize) {
                $("#uSPStyle li a").removeClass("current");
                vULSubSize = $("#uSPStyle > li:eq(" + (vFirst-1) + ") a").addClass("current").size();

                //vULSubSize = ""; //get the size of the sub UL inside the above LI
                if (vSecond <= vULSubSize) { //if the number is less than or equal to the size of the sub UL
                    
                    $("#uSPStyle > li:eq(" + (vFirst-1) + ")").find("ul").slideToggle(); //expand the sub UL inside the LI
                    $("#uSPStyle > li:eq(" + (vFirst-1) + ")").find("ul li:eq(" + vSecond + ")").addClass("current"); //add the 'current class to the sub UL LI
                    $('.dispArtBody').addClass('hideContent'); //hide all content
                    var element = $("#uSPStyle li:eq(" + vFirst + ")").find("ul li:eq(" + vSecond + ")").attr("data-toggle"); //get the class of the LI which corresponds to the body class
                    $(element).removeClass('hideContent'); //show that content which corresponds to the element
                }
                //$("#uSPStyle li:eq(" + vFirst + ")").find("a").each(function() {
                //    console.log(this.text);
                //});
            }
        } else {
            //{need help}remove 'current' class from the existing parent LI
            $("#uSPStyle li:eq(" + vFirst + ")").addClass("current"); //{need help}add the 'current' class to the parent LI
            $('.dispArtBody').addClass('hideContent'); //{need help}hide all content
           ...