sharepoint 2016 how to Move column descriptions above the textbox

Question

how to Move column descriptions of choice above the textbox I tried below code but no luck

<script type="text/JavaScript" src="/Style%20Library/JS/jquery-1.11.3.min.js"></script>
<script type="text/JavaScript">
$(document).ready(function () {
    $('td.ms-formbody').each(function(){
        var theDescrip = $(this).contents('span.ms-metadata');
        $(this).prepend(theDescrip);
        theDescrip.after("<br/>");
    });
});