[Theme: Codium Extend] Turn Nav on for Mobiles and Turn Off Centring.

Hi,

My site is at: https://markblower.com/blog

I would like to change the navigation a bit. Presently it displays like so at the bottom centre of the page:

? Previous Page — Next Page ?

And is turned OFF on mobile devices. I’d like it instead to say “Older posts” on the right and “Newer posts” on the left and for the navigation to be ON on mobiles.

The navigation for single posts works well btw.

I found this in Category.php I don’t know if it’s of any use:

<div class="linebreak clear"></div>

<?php endwhile; endif ?>

<div class="center">
	<?php if(function_exists('wp_pagenavi')) {
		wp_pagenavi();
	} else {?>
		<div class="navigation mobileoff"><p><?php posts_nav_link(); ?></p></div>
		 <?php } ?>
		<div class="navigation_mobile"><p><?php posts_nav_link(); ?></p></div>
</div>

		</div><!-- #content -->
	</div><!-- #container -->

<?php get_sidebar() ?>
<?php get_footer() ?>

Any help would be much appreciated,

Mark