html - How to use Html5's details and summary tag to hide and expand an entire row in a table? -


i use details tag hide , expand entire row in table, have code 

           <table border="1">                 <tr>                     <td>header 1 </td>                     <td>header 2 </td>                     <td>header 3 </td>                 </tr>                  <tr>                     <td>content 1 </td>                     <td>content 2 </td>                     <td>content 3 </td>                 </tr>                  <details>                     <tr>                         <td>hidden content 1 </td>                         <td>hidden content 2 </td>                         <td>hidden content 3 </td>                     </tr>                 </details>             </table>

when expanding details tag, produces "hidden" row in 1 column instead of entire 3 columns in original table. have tried putting tag inside row come accross same issue

                    <tr><details>                         <td>hidden content 1 </td>                         <td>hidden content 2 </td>                         <td>hidden content 3 </td>                         </details>                     </tr>

has come accross problem , managed solve it?

place contents want hide in new table , wrap details tag around that: 

table {    width: 300px;  }
<table border="1">    <tr>      <td>header 1 </td>      <td>header 2 </td>      <td>header 3 </td>    </tr>      <tr>      <td>content 1 </td>      <td>content 2 </td>      <td>content 3 </td>    </tr>  </table>  <details>    <table border="1">      <tr>        <td>hidden content 1 </td>        <td>hidden content 2 </td>        <td>hidden content 3 </td>      </tr>    </table>  </details>


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