Try it Editor

<!DOCTYPE html>
<html>
<head>
    <title>HTML Table Background</title>
</head>
<body>
    <table border="1" bordercolor="green" bgcolor="yellow">
        <caption>This is the caption</caption>
        <tr>
            <th>Column 1</th>
            <th>Column 2</th>
            <th>Column 3</th>
        </tr>
        <tr>
            <td rowspan="2">Row 1 Cell 1</td>
            <td>Row 1 Cell 2</td>
            <td>Row 1 Cell 3</td>
        </tr>
        <tr>
            <td>Row 2 Cell 2</td>
            <td>Row 2 Cell 3</td>
        </tr>
        <tr>
            <td colspan="3">Row 3 Cell 1</td>
        </tr>
    </table>
</body>
</html>