<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>:nth-child Pseudo-class</title> <style> table{ margin: 40px; border-collapse: collapse; } table tr{ border-bottom: 7px solid blue; } table tr th, table tr td{ padding: 15px; } table tr:nth-child(2n) td{ background: yellow; } </style> </head> <body> <table> <tr> <th>ID</th> <th>Name</th> <th>Phone Number</th> </tr> <tr> <td>1</td> <td>Ram</td> <td>9887231569</td> </tr> <tr> <td>2</td> <td>Ravi</td> <td>9872750934</td> </tr> <tr> <td>3</td> <td>Raj</td> <td>9826095437</td> </tr> </table> </body> </html>