JSFiddle - React, Tailwind, and code Playground

HTML

<h2>123</h2>
<div>333</div>
<h2>123</h2>
<div>333</div>
<h2>123</h2>
<div>333</div>

JavaScript

$('h2').next().hide();

  $('h2').mouseover(function() {
    var $anse = $(this).next();
    $anse.show();
  });
  $('h2').mouseout(function() {
    var $anse = $(this).next();
    $anse.hide();
  });
  $('h2').click(function() {
    var $anse = $(this).next();
    $(this).off('mouseout');
  });