CSSを使用してホバー時に表内の行と列を強調表示する方法

table {
    border-spacing: 0;
    border-collapse: collapse;
    overflow: hidden;
    z-index: 1;
}

td, th, .row, .col {
    cursor: pointer;
    padding: 10px;
    position: relative;
}

td:hover::before,
.row:hover::before { 
    background-color: #ffa;
    content: '<pre class="brush:php;toolbar:false"><table>
    <tr>
        <th></th>
        <th class="col">50kg</th>
        <th class="col">55kg</th>
        <th class="col">60kg</th>
        <th class="col">65kg</th>
        <th class="col">70kg</th>
    </tr>
    <tr>
        <th class="row">160cm</th>
        <td>20</td><td>21</td><td>23</td><td>25</td><td>27</td>
    </tr>
    <tr>
        <th class="row">165cm</th>
        <td>18</td><td>20</td><td>22</td><td>24</td><td>26</td>
    </tr>
    <tr>
        <th class="row">170cm</th>
        <td>17</td><td>19</td><td>21</td><td>23</td><td>25</td>
    </tr>
    <tr>
        <th class="row">175cm</th>
        <td>16</td><td>18</td><td>20</td><td>22</td><td>24</td>
    </tr>
</table>