HTML <td> tag with custom style at PNLdev

Run
<!DOCTYPE html>
<html >
  <head>
    <style>
      tbody, th, td{
        border: 1px solid black;
      }
    </style>
  </head>
  <body>
    <table>
      <tr>
        <th>name</th>
        <th>email</th>
        <th>tel</th>
      </tr>
      <tr>
        <td>ali heydari</td>
        <td>aliheydari@gmail.com</td>
        <td>09124552545</td>
      </tr>
    </table>
    <hr>
    <table>
      <tr>
        <th>name</th>
        <td>ali heydari</td>
      </tr>
      <tr>
        <th>email</th>
        <td>aliheydari@gmail.com</td>
      </tr>
      <tr>
        <th>tel</th>
        <td>09124552545</td>
      </tr>
    </table>
  </body>
</html>