Specify Table Column Width on a Page

You could do it like this?

<table border="5">
<tbody>
    <tr>
        <td width="150" colspan="2">
            <h4>NLP</h4>
        </td>
    </tr>
    <tr>
        <td width="50">Overview</td>
        <td width="100">A natural language processing challenge.</td>
    </tr>
</tbody>

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)