JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    Title <a href="#" class="toggleNext">+</a>
    <div id="b1" class="hide">...content...</div>
</div>

<div>
    Title <a href="#" class="toggleNext">+</a>
    <div id="b2" class="hide">...content...</div>
</div>

<div>
    Title <a href="#" class="toggleNext">+</a>
    <div id="b3" class="hide">...content...</div>
</div>

CSS

.hide {
    display: none;
}

JavaScript

$('.toggleNext').click(function(){
    $(this).next().toggle()
});