The placeholder attribute specifies a short hint that describes the expected value of an input field. Example as :
<html> <head> <title> Placeholders in HTML</title> </head> <body> <form action="submit.php"> <input type="text" name="fname" placeholder="First name"> <br> <input type="text" name="lname" placeholder="Last name"> <br> <input type="submit" value="Submit"> </form> </body> </html>