JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <p><strong>Title 1</strong></p>
    <p>Content 1</p>
    <p>Content 2</p>
    <p><strong>Title 2</strong></p>
    <p>Content 1</p>
    <p>Content 2</p>
    <p>Content 3</p>
</div>

JavaScript

$(document).ready(function() {
    $("p").hide();
    $("p:contains('Title 2')").nextAll().show();
});