Submit Button
<input type="submit"> defines a button for submitting the form data to a form-handler.The form-handler is typically a server page with a script for processing input data.
The form-handler is specified in the form's action attribute:
Example
<form action="/action_page.php">
First name:<br>
<input type="text"
name="firstname" value="Nill"><br>
Last name:<br>
<input
type="text" name="lastname" value="Bro"><br><br>
<input type="submit" value="Submit">
</form>
