Emphasize the interactions within the table cells based on their corresponding column and row

I'm looking to achieve a specific interaction in my Angular Material table. I want to highlight the table cell interactions with column and row by extending the highlighting up to the column header and left to the row header. Is this something that can be done using mat-table?

Here's an example

Check out this link for reference

I attempted a solution, but it didn't work as intended due to how mat-table handles columns.

tr:hover {
  background-color: #ffa;
}

td, th {
  position: relative;
}
td:hover::after,
th:hover::after {
  content: "";
  position: absolute;
  background-color: #ffa;
  left: 0;
  top: -5000px;
  height: 10000px;
  width: 100%;
  z-index: -1;
}
htmlcssangularangular-material

Answer №1

Learn how to highlight cells on hover based on their row and column.

<html>

  <style>
  table {
   border-spacing: 0;
   border-collapse: collapse;
   overflow: hidden;
   background-color: white;
}

td, th {
   padding: 10px;
   position: relative;
}

tr:hover{
   background-color: rgba(255, 255, 0, 0.5);
}

td:hover::after,th:hover::after { 
   background-color: rgba(255, 255, 0, 0.5);
   content: '\00a0';  
   height: 10000px;    
   left: 0;
   position: absolute;  
   top: -5000px;
   width: 100%;   
}
</style>


<body>
  <table>
    <tr>
        <th></th>
        <th>lore</th>
        <th>lore</th>
        <th>lore</th>
        <th>lore</th>
        <th>lore</th>
    </tr>

    <tr>
        <th class="row">lore</th>
        <td>20</td>
        <td>21</td>
        <td>23</td>
        <td>25</td>
        <td>27</td>
    </tr>

    <tr>
        <th class="row">lore</th>
        <td>18</td>
        <td>20</td>
        <td>22</td>
        <td>24</td>
        <td>26</td>
    </tr>

    <tr>
        <th class="row">lore</th>
        <td>17</td>
        <td>19</td>
        <td>21</td>
        <td>23</td>
        <td>25</td>
    </tr>

    <tr>
        <th class="row">lore</th>
        <td>16</td>
        <td>18</td>
        <td>20</td>
        <td>22</td>
        <td>24</td>
    </tr>

</table>


</body>

</html>

<!DOCTYPE html>
<html>

  <style>
  table {
   border-spacing: 0;
   border-collapse: collapse;
   overflow: hidden;
   background-color: white;
}

td, th {
   padding: 10px;
   position: relative;
}

tr:hover{
   background-color: rgba(255, 255, 0, 0.5);
}

td:hover::after,th:hover::after { 
   background-color: rgba(255, 255, 0, 0.5);
   content: '\00a0';  
   height: 10000px;    
   left: 0;
   position: absolute;  
   top: -5000px;
   width: 100%;   
}
</style>


<body>
  <table>
    <tr>
        <th></th>
        <th>lore</th>
        <th>lore</th>
        <th>lore</th>
        <th>lore</th>
        <th>lore</th>
    </tr>

    <tr>
        <th class="row">lore</th>
        <td>20</td>
        <td>21</td>
        <td>23</td>
        <td>25</td>
        <td>27</td>
    </tr>

    <tr>
        <th class="row">lore</th>
        <td>18</td>
        <td>20</td>
        <td>22</td>
        <td>24</td>
        <td>26</td>
    </tr>

    <tr>
        <th class="row">lore</th>
        <td>17</td>
        <td>19</td>
        <td>21</td>
        <td>23</td>
        <td>25</td>
    </tr>

    <tr>
        <th class="row">lore</th>
        <td>16</td>
        <td>18</td>
        <td>20</td>
        <td>22</td>
        <td>24</td>
    </tr>

</table>





</body>






</html>

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