Table puzzle

https://preview.redd.it/axgnhes65rx91.png?width=960&crop=smart&auto=webp&s=44945280ec02fdc43ed402e9a66128fefd5df5a6

by Amy L

HTML

<table cellspacing="1" cellpadding="3" border="1">
	<tr>
  	<td colspan="3">1</td>
    <td rowspan="3">2</td>
    <td colspan="2">3</td>
    <td rowspan="5">4</td>
    <td colspan="2" rowspan="2">5</td>
  </tr>
  <tr>
  	<td colspan="2">6</td>
    <td>7</td>
    <td colspan="2" rowspan="3">8</td>
  </tr>
  <tr>
  	<td>9</td>
    <td colspan="2">10</td>
    <td rowspan="2">11</td>
    <td rowspan="4">12</td>
  </tr>
  <tr>
  	<td rowspan="3">13</td>
  	<td>14</td>
 		<td colspan="2">15</td>
  </tr>
  <tr>
  	<td rowspan="3">16</td>
    <td>17</td>
    <td colspan="2">18</td>
    <td rowspan="2">19</td>
    <td>20</td>
  </tr>
  <tr>
  	<td colspan="3">21</td>
    <td colspan="2" rowspan="2">22</td>
  </tr>
  <tr>
  	<td>23</td>
    <td>24</td>
    <td colspan="3">25</td>
    <td>26</td>
  </tr>
 
</table>

CSS

table {
width: 30rem;
}
td {
width: 3rem;
}