Try it Live

​x
 
<!DOCTYPE html>
<html>
 <head>
  <style>
    #table-border-radius, th, td {
        border:6px groove;
        border-radius:10px;
        padding:6px;
    }
  </style>
 </head>
 <body>
   <h2>CSS Table Radius property </h2>
   <table id="table-border-radius">
     <tr>
       <th>CSS</th>
       <th>CSS2</th> 
       <th>CSS3 </th>
     </tr>
     <tr>
       <td>Initial version</td>
       <td>Second Version</td>
       <td>Third Version</td>
     </tr>
   </table>
 </body>
</html>
​