<!DOCTYPE html>
<html>
<body>
<form action="form-tag-in-html.html" onsubmit="alert('Submitted!');return false;">
<label for="First name"> First Name: </label><br>
<input type="text" name="name"><br>
<label for="Second name">Second Name: </label><br>
<input type="text" name="name"><br>
<input type="submit" value="Submit">
</form>
</body>
</html>
<html>
<body>
<form action="form-tag-in-html.html" onsubmit="alert('Submitted!');return false;">
<label for="First name"> First Name: </label><br>
<input type="text" name="name"><br>
<label for="Second name">Second Name: </label><br>
<input type="text" name="name"><br>
<input type="submit" value="Submit">
</form>
</body>
</html>
Result