div > p and selecting all selected rows

div > p selects only the <p> elements that are immediate children of a <div>.

div > p

will select this paragraph:

<div>
    <p>This is a paragraph</p>
</div>

but will not select this paragraph:

<div>
    <table>
        <tr>
            <td>
                
            </td>
        </tr>
    </table>
</div>

All selected rows at a time can be returned using this