JSFiddle - React, Tailwind, and code Playground

HTML

<div class="ac-container">
    <div>
        
        <input id="ac-1" name="accordion-1" type="radio" checked/>
        <ul class="ac-small">
            <li>Some content</li>
        </ul>
        <label for="ac-1">About us</label>
        
    </div>    

<div>    
        <input id="ac-2" name="accordion-1" type="radio" />
        <ul class="ac-small">
            <li>Some more content</li>
            <li>test</li>
        </ul>
        <label for="ac-2">About us</label>
</div>
</div>

CSS

.ac-container{
    width: 400px;
    margin: 10px auto 30px auto;
    text-align: left;
}
.ac-container label{
    font-family: 'BebasNeueRegular', 'Arial Narrow', Arial, sans-serif;
    padding: 5px 20px;
    position: relative;
    z-index: 20;
    display: block;
    height: 30px;
    cursor: pointer;
    color: #777;
    text-shadow: 1px 1px 1px rgba(255,255,255,0.8);
    line-height: 33px;
    font-size: 19px;
    background: #ffffff;
    background: -moz-linear-gradient(top, #ffffff 1%, #eaeaea 100%);
    background: -webkit-gradient(linear, left top, left bottom, color-stop(1%,#ffffff), color-stop(100%,#eaeaea));
    background: -webkit-linear-gradient(top, #ffffff 1%,#eaeaea 100%);
    background: -o-linear-gradient(top, #ffffff 1%,#eaeaea 100%);
    background: -ms-linear-gradient(top, #ffffff 1%,#eaeaea 100%);
    background: linear-gradient(top, #ffffff 1%,#eaeaea 100%);
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#eaeaea',GradientType=0 );
    box-shadow: 
        0px 0px 0px 1px rgba(155,155,155,0.3), 
        1px 0px 0px 0px rgba(255,255,255,0.9) inset, 
        0px 2px 2px rgba(0,0,0,0.1);
}
.ac-container label:hover{
    background: #fff;
}
.ac-container input:checked + label,
.ac-container input:checked + label:hover{
    background: #c6e1ec;
    color: #3d7489;
    text-shadow: 0px 1px 1px rgba(255,255,255, 0.6);
    box-shadow: 
        0px 0px 0px 1px rgba(155,155,155,0.3), 
        0px 2px 2px rgba(0,0,0,0.1);
}

.ac-container input{
    display: none;
}
.ac-container ul{
    background: rgba(255, 255, 255, 0.5);
    margin-top: -1px;
    overflow: hidden;
    max-height: 0px;
    position: relative;
    z-index: 10;
    -webkit-transition: max-height 0.3s ease-in-out, box-shadow 0.6s linear;
    -moz-transition: max-height 0.3s ease-in-out, box-shadow 0.6s linear;
    -o-transition: max-height 0.3s ease-in-out, box-shadow 0.6s linear;
    -ms-transition: max-height 0.3s ease-in-out,...