Tryit Editor v1.8

Source Code:
<!DOCTYPE html> <html> <head> <style> table, td, th { border:1px solid green; } th { background-color:green; color:white; } </style> </head> <body> <table> <tr> <th>Firstname</th> <th>Lastname</th> <th>Savings</th> </tr> <tr> <td>Peter</td> <td>Griffin</td> <td>$100</td> </tr> <tr> <td>Lois</td> <td>Griffin</td> <td>$150</td> </tr> <tr> <td>Joe</td> <td>Swanson</td> <td>$300</td> </tr> <tr> <td>Cleveland</td> <td>Brown</td> <td>$250</td> </tr> </table> </body> </html>
Result:
W3Schools.com - Try it yourself