Remove Footer Credit by Theme Developer

Hi!

Please help. My CSS and footer.php won’t work. Guess I’m doing something wrong. I have tried editing it already but won’t work. How to remove it pls? thanks so much.

Webdevelopment Experience: Beginner

Version: WordPress 4.1.1
Running theme: Shopping theme by Themehall – Child theme of Omega *Parent theme
Required plug-in: WooCommerce *Version 2.3.5
Website: https://www.pingconmarketing.com/

Concern/s:

Footer credit – How can I remove the ‘Theme by Themehall’ credit in my footer pls?

My style.css on site footer referenced via chrome inspect element looks like this…

.site-footer {
	border-top: 1px solid #F5F5F5;
	font-size: 14px;
	padding: 40px 0;
	text-align: center;
}

.site-footer p {
	margin: 0;
}

p.copyright {
	font-size: inherit;
}

My footer.php looks like this…

<?php
/**
 * The template for displaying the footer.
 *
 * Contains the closing of the class=site-inner div and all content after
 *
 * @package Omega
 */
?>
		<?php do_action( 'omega_after_main' ); ?>

	</div><!-- .site-inner -->

	<?php
	do_action( 'omega_before_footer' );
	do_action( 'omega_footer' );
	do_action( 'omega_after_footer' );
	?>

</div><!-- .site-container -->

<?php do_action( 'omega_after' ); ?>

<?php wp_footer(); ?>

</body>
</html>

Please help. Thanks so much.