<!DOCTYPE html>
<html lang="en-US">
<body>
<form action="/user-name.php" name="myForm">
Name: <input type="text" name="name">
</form>
<p>The following button is from nowhere</p>
<button type="submit" onclick="myForm.submit();">Submit</button>
<p><strong>Note :</strong> Though the submit button is not inside the <strong>form</strong> tag, the form name helps to identify which form is to be submitted when the user click the submit button</p> </body>
</html>