JSFiddle - React, Tailwind, and code Playground

by ampersand

HTML

<div class="box">
    <input id="radio-1" name="radio-1" value="1" type="radio" class="radio">
    <div class="hidden_box">
    some content
    </div>
</div>

<div class="box">
    <input name="radio-2" value="1" type="radio" class="radio">
    <div class="hidden_box">
    some content
    </div>
</div>

CSS

.hidden_box {
    display:none;
}

JavaScript

$('.radio').click($(this).parent().find('.hidden_box').show);