Execute
<!DOCTYPE html> <html> <head> <title>The Col Tag</title> <style> table, td, th { border: 2px solid gray; border-collapse: collapse;} </style> </head> <body> <h2>Example of Col Tag</h2> <p><b>Note:</b> In HTML col tag does not require closing tag but in XHTML it requires closing tag</p> <table width="450"> <col span="2" style="background-color:red"> <col style="background-color:yellow"> <tr> <th>Sr. No.</th> <th>Name</th> <th>Email</th> </tr> <tr> <td>1.</td> <td>Jai</td> <td>dummy@codingtag.com</td> </tr> <tr> <td>2.</td> <td>Lalita</td> <td>lalita@codingtag.com</td> </tr> <tr> <td>3.</td> <td>Codinguser</td> <td>codinguser@codingtag.com</td> </tr> </table> </body> </html>