HTML CSS examples for HTML Tag:input
You do this with the required attribute.
The user cannot submit the form until a value has been provided.
Using the required Attribute
<!DOCTYPE html> <html> <head> <title>Example</title> </head> <body> <form method="post" action="http://example.com/form"> <input type="hidden" name="recordID" value="1234"> <p> <label for="name"> Name: <!--from w w w . j a va2s . c o m--> <input type="text" required id="name" name="name"> </label> </p> <p> <label for="password"> Password: <input type="password" required placeholder="Min 6 characters" id="password" name="password"> </label> </p> <p> <label for="accept"> <input type="checkbox" required id="accept" name="accept"> Accept Terms & Conditions </label> </p> <input type="submit" value="Submit"> </form> </body> </html>