JSFiddle - React, Tailwind, and code Playground

HTML

<div class="menu">
    <p class="header-menu">Меню</p>

    <ul class="menu-list" id="menu-list">        
        <li>
            <a href="/category/bamper">Категория 1</a>
            <span id="">48</span>
        </li>
        <li class="active">
            <p>Активный пункт</p>
            <span id="">12</span>
        </li>
        <li>
            <a href="/category/bamper">Категория 2</a>
            <span id="">54</span>
        </li>
        <li>
            <a href="/category/bamper">Категория 3</a>
            <span id="">80</span>
        </li>
    </ul>
</div>

<div class="menu" style="margin-top: 20px;">
    <p class="header-menu">Меню</p>

    <ul class="menu-list">        
        <li class="active">
            <p>Активный пункт</p>
            <span id="">12</span>
        </li>
    </ul>
</div>

CSS

.menu {
    border-radius: 8px;
    overflow: hidden;
    background-color: #FFF;
    padding: 10px;
    box-shadow: 0 0 4px;
    width: 60%;
    margin: 0 auto;
}

.header-menu{
    margin: 0;
    font-size: 180%;
    text-align: center;
    padding: 10px;
    cursor: pointer;
}

.menu-list{
    padding: 0;
    margin: 0;
    list-style: none;
}

.menu-list>li {
    width: 100%;
    display: block;
    overflow: auto;
}

.menu-list>li:hover {
    background-color: #eee;
}

.menu-list>li.active{
    background-color: #34495e;
}

.menu-list>li.active>p{
    margin: 0;
    color: #fff;
    padding: 10px;
    display: block;
    float: left;
    width: 100%;
    max-width: 70%;
}

.menu-list>li.active>span{
    background-color: #ecf0f1;
    color: #34495e;
}

.menu-list>li>a {
    padding: 10px;
    display: block;
    color: #2980B9;
    float: left;
    width: 100%;
    max-width: 70%;
}

.menu-list>li>span {
    float: right;
    padding: 6px;
    background-color: #6EBDE2;
    border-radius: 10px;
    color: #FFF;
    margin: 4px;
}

JavaScript

$('.header-menu').click(function(){
$('#menu-list>li').slideUp();
$('#menu-list>li.active').stop().slideDown();
            })