Theme overriding custom css

Many things, but one example is the price options in the woo product grid:
}
.woocommerce-grid-Price-amount.amount {
display: none;
}

I’m actually calling the CSS from a custom CSS file now rather than from the theme options by adding this to the functions.php file, to try and fix this issue, but still no joy:

// Load custom product styles after Enfold’s dynamic CSS
add_action( ‘wp_enqueue_scripts’, ‘kk_enqueue_custom_product_styles’, 20 );
function kk_enqueue_custom_product_styles() {
wp_enqueue_style( ‘kk-product-styles’, get_stylesheet_directory_uri() . ‘/kk-product-styles.css’, array(), ‘1.0’ );
}