<div class="calculator">
<div class="screen-wrapper">
<div id="screen">
<div id="expression"><span id="typed-cursor" /></div>
<div id="result">0</div>
</div>
</div>
<table class="keys">
<tbody>
<tr>
<td class="red key" data-func="clear">C</td>
<td class="red key" data-func="cancel_entry">CE</td>
<td class="gray key power" data-token="op_pow">x<span>y</span></td>