For me it’s all right.
What that’s going on? What is wrong ?
<body>
<table border="1px">
<thead>
<tr>
<th>Monstro Famoso</th><th>Ano de Nascimento<th>
</tr>
</thead>
<tbody>
<tr>
<td>King Kong</td>
<td>1933</td>
</tr>
<tr>
<td>Dracula</td>
<td>1897</td>
</tr>
<tr>
<td>A Esposa do Frankenstein</td>
<td>1935</td>
</tr>
</tbody>
</table>
</body>