I have a table structure like this 

```
<table>
    <tr>
        <td>Name</td>
        <td>Info</td>
        <td>Surmane</td>
    </tr>
    <tr>
        <td>A</td>
        <td>
            <table>
                <tr>
                    <td>Id</td>
                    <td>10</td>
                </tr>
                <tr>
                    <td>Name</td>
                    <td>AA</td>
                </tr>
                <tr>
                    <td>Age</td>
                    <td>25</td>
                </tr>
                <tr>
                    <td>Address</td>
                    <td>AAA</td>
                </tr>
            </table>
        </td>
        <td>AAAA</td>
    </tr>
    <tr>
        <td>B</td>
        <td>
            <table>
                <tr>
                    <td>Id</td>
                    <td>10</td>
                </tr>
                <tr>
                    <td>Name</td>
                    <td>BB</td>
                </tr>
                <tr>
                    <td>Age</td>
                    <td>25</td>
                </tr>
                <tr>
                    <td>Address</td>
                    <td>BBB</td>
                </tr>
            </table>
        </td>
        <td>BBBB</td>
    </tr>
    <tr>
        <td>C</td>
        <td>
            <table>
                <tr>
                    <td>Id</td>
                    <td>10</td>
                </tr>
                <tr>
                    <td>Name</td>
                    <td>CC</td>
                </tr>
                <tr>
                    <td>Age</td>
                    <td>25</td>
                </tr>
                <tr>
                    <td>Address</td>
                    <td>CCC</td>
                </tr>
            </table>
        </td>
        <td>CCCC</td>
    </tr>
</table>

```

Now i want to change the color of first table->first row (Name, Info, Surname) using css.
The css should not affect the second table->first row(Id,10)

Please suggest me any idea
Thanks