JSFiddle - React, Tailwind, and code Playground

HTML

<div class="dataContainer">
    <div class="clsContextContainer">
        <a href="intro.php">Chapter1</a>
        <a href="basic.php">Chapter2</a>
        <a href="next.php">Chapter3</a>
        <a href="advanced.php">Chapter4</a>
        <a href="future.php">Chapter5</a>
    </div>
    <div class="clsContentContainer">
       <div class="q"> Q: Question goes here
        <div class="c">C: a) choice1 b) choice2</div>
        <div class="a">AnswerButton</div></div>
        
       <div class="q"> Q: Question goes here
        <div class="c">C: a) choice1 b) choice2</div>
       <div class="a"> AnswerButton</div>
           </div>
    </div>
</div>

CSS

.clsContextContainer > a
{
    display: block;
    text-decoration: none;
    color: #000;
    cursor: pointer;
    border: 1px solid;
    margin: 5px;
}

.clsContextContainer
{
    width: 35%;
    border-right:1px solid;
    height: 100%;
    float: left;
}

.clsContentContainer {
    float: left;
    border: 1px solid;
    width: 60%;
    height: 100%;
    min-height: 300px;
}

.dataContainer {
    overflow: hidden;
}

.clsContextContainer a:nth-of-type(1)
{
    background-color: #565;
    color: #fff;
}
.q
{
    margin: 15px;
}