I want to center the practiceType div inside the practice div block. It is a jquery mobile page. Here is my code.
<body>
        <div data-role="page" id="practice" >
<!-- /header -->
    <div data-role="header" id="appheader">
        <h2 style="text-align:center;">XXX - Practice Test</h2>
    </div>
<!-- /content -->
    <div role="main" class="ui-content" id="practiceType" style="margin-top:25%;margin-bottom:25%;">
           <div data-role="main" class="ui-content" >
        <a href="#" class="ui-btn ui-corner-all">MATH PRACTICE TEST </a>
        <a href="#" class="ui-btn ui-corner-all">ELA PRATICE TEST</a>
            </div>
    </div>
<!-- /footer -->
    <div data-role="footer" data-position="fixed" data-tap-toggle="false"  id="appfooter" >
        <h6>Comprehensive Learning Resources</h6>
    </div>
</div><!-- /page -->
    </body>
</html>
 
     
     
    