Look at the following code snippet:

<form action="register.php">
    <fieldset>
        <label for="name">Name:</label>
        <input type="text" id="name" name="user_name">
        <label for="password">Password:</label>
        <input type="password" id="password" name="user_password">
        <!--- ... --->
        <input type="submit" value="Register">
    </fieldset>
</form>