<!DOCTYPE html> <html> <head> <style> table, th, td { border: 1px solid red; border-collapse:collapse; } th, td { padding: 20px; } </style> </head> <body> <table style="width:100%"> <tr> <th>Ad</th> <th>Soyad</th> </tr> <tr> <td>Ali</td> <td>Veli</td> </tr> <tr> <td>Cem</td> <td>Tem</td> </tr> </table> </body> </html>