How to give textbox email-id validateion .com and .in

Question

Hello Members,

 

Hope you are doing good!!

 

Can any one guide me on email-id validation to textbox with .com and .in

 

<tr><td class="center"><input class="td" type="email" id="txtworkemail" pattern="*******" placeholder="Work email" required/></td></tr>

 

Thank you in advance!!