[Solved] How to make a div fixed


I have edited your code try this one

<style>
#myiput{
position: -webkit-sticky;
  position: sticky;
  top: 0;
  padding: 5px;
}
</style>
    <table>
       <tr>
          <td>
             <div>
                <input id="myinput" type="text">  
                <table>
                   <tr style="display: none;" >
                      <td>
                         hidden row 1
                      </td>
                   </tr>
                   <tr style="display: none;" >
                      <td>
                         hidden row 2
                      </td>
                   </tr>
                   <tr style="display: none;" >
                      <td>
                         hidden row 3
                      </td>
                   </tr>
                </table>
             </div>
          </td>
       </tr>
       <tr>
          <td>
             I want you to stay fixed
          </td>
       </tr>
    </table>

solved How to make a div fixed