JSFiddle - React, Tailwind, and code Playground

HTML

<div id="content">
  // Display List elements here
<div>
<input type="button" value="search" id="search-btn">

CSS

.button {
  height: 25px;
  width: 10px;
}

.button:hover {
  color: #c30202;
  cursor:pointer;
}

JavaScript

$.ajax({
   url: 'http://optioncare.com/',
   type: 'GET',
   success: function(res) {
      var data = $.parseHTML(res);  //<----try with $.parseHTML().
      $(data).find('div.mk-header-holder');
   }
 });