<!DOCTYPE html> <html lang="en"> <head> <title>The Requied Attribute</title> </head> <body> <form action="examples/resources/submit.aspx"> Your name: <input type="text" name="myname" required /><br /><br /> E-Mail Id: <input type="email" name="myemail" required /><br /><br /> Gender: <input type="radio" name="gender" value="male" required> Male <input type="radio" name="gender" value="female" required> Female<br /><br /> Country: <select name="country" required> <option value="" disabled selected>Select Country</option> <option value="usa">United States</option> <option value="canada">Canada</option> </select> <hr /> <input type="submit" value="Submit" /> </form> </body> </html>