Try it Live

​x
 
<!DOCTYPE html>
<html>
 <head>
  <style>
   .width-height {
      width:50%;
      height:60%;
    }   
  </style>
 </head>
 <body>
   <h2>Plain HTML Table</h2>
   <table>
     <caption> TutorialBrain Tutorials </caption>
     <tr>
       <th>HTML5</th>
       <th>CSS3</th> 
       <th>Mainframe server </th>
     </tr>
     <tr>
       <td>New version</td>
       <td>Advanced style</td>
       <td>Virtual storage</td>
     </tr>
   </table>  
   
   <h2>CSS Table Width & Height applied on Table Level</h2>
   <table class="width-height">
     <caption> TutorialBrain Tutorials </caption>
     <tr>
       <th>HTML</th>
       <th>CSS</th> 
       <th>Mainframe </th>
     </tr>
     <tr>
       <td>Tags & elements</td>
       <td>Apply style</td>
       <td>COBOL</td>
     </tr>
   </table>
 </body>
</html>
​