JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://shiro-desu.com/scr/jquery/jquery.min.js"></script>
<script src="http://shiro-desu.com/scr/itemsperpage/jquery-1.8.2.min.js"></script>

<div id="refreshableDiv">Primary content</div>
<input type="submit" class="button1" name="button1" value="Reload"/>

JavaScript

$(document).ready(function(){
 $('#button1').click(function(){
        $.post(
        "http://shiro-desu.com/scr/test/test.php",
        {
        },
        function(data){
        $('#refreshableDiv').html(data);
        });
    });
});