JSFiddle - React, Tailwind, and code Playground

HTML

<input id="myTF" type="text" value="text to insert" />
<input type="submit" id="submitBtn" value="submit" />
<table cellpadding="0" border="0" align="" name="headingGrid">
    <tr>
        <td class="mytitle" name="breadCrumbCell" id="mytitle">
            <nobr>Corporation X <span class="txtEl"></span>

            </nobr>
        </td>
    </tr>
</table>

JavaScript

$(function () {
    $('#submitBtn').click(function () {
        $('.txtEl').text($('#myTF').val());
    });
});