JSFiddle - React, Tailwind, and code Playground

HTML

<div class="item">Первый</div>
<div>
    <div class="item">Второй</div>
</div>
<div>
    <div class="item active">Третий</div>
</div>
<div class="item">Четвертый</div>
<div class="item hidden">Пятый</div>
<div>
    <div class="item">Шестой</div>
</div>

CSS

.active { background: #e5e5e5; }
.hidden { display: none; }