css - Template can be swipe outside Mobile viewport after Functions.php shortcode - WooCommerce

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I am having a strange issue where I use a custom functions.php shortcode to display Recently Viewed Products on single product page.

However once I add it I am able to swipe outside the website and see white space around.

I reverted back to default theme and the issue is still there.

The code is:

/// Recently Viewed Products ///
add_shortcode( 'recently_viewed_products', 'bbloomer_recently_viewed_shortcode' );
 
function bbloomer_recently_viewed_shortcode() {
 
   $viewed_products = ! empty( $_COOKIE['woocommerce_recently_viewed'] ) ? (array) explode( '|', wp_unslash( $_COOKIE['woocommerce_recently_viewed'] ) ) : array();
   $viewed_products = array_slice($viewed_products, 0, 6);

 
   if ( empty( $viewed_products ) ) return;
    
   $title = '<h5 class="product-section-title container-width product-section-title-related pt-half pb-half uppercase">RECENTLY VIEWED</h5>';
   $product_ids = implode( ",", $viewed_products );
 
   return $title . do_shortcode("[products ids='$product_ids']");
   
}

// adds notice at single product page above add to cart
add_action( 'woocommerce_after_single_product', 'recviproducts', 31 );
function recviproducts() {
    echo do_shortcode ('[recently_viewed_products]');
}

function custom_track_product_view() {
    if ( ! is_singular( 'product' ) ) {
        return;
    }

    global $post;

    if ( empty( $_COOKIE['woocommerce_recently_viewed'] ) )
        $viewed_products = array_slice($viewed_products, 0, 6);
    else
        $viewed_products = (array) explode( '|', $_COOKIE['woocommerce_recently_viewed'] );

    if ( ! in_array( $post->ID, $viewed_products ) ) {
        $viewed_products[] = $post->ID;
    }

    if ( sizeof( $viewed_products ) > 6 ) {
        array_shift( $viewed_products );
    }

    // Store for session only
    wc_setcookie( 'woocommerce_recently_viewed', implode( '|', $viewed_products ) );
}

add_action( 'template_redirect', 'custom_track_product_view', 20 );

Maybe it should be limited via CSS I believe?

I will appreciate any help or advise possible.

Thank you so much!