Astra_Elementor_Pro::render_post_class( array $classes )

		public function render_post_class( $classes ) {
			$post_class = array( 'elementor-post elementor-grid-item', 'elementor-portfolio-item' );
			$result     = array_intersect( $classes, $post_class );

			if ( count( $result ) > 0 ) {
				$classes = array_diff(
					$classes,
					array(
						// Astra common grid.
						'ast-col-xs-1',
						'ast-col-xs-2',
						'ast-col-xs-3',
						'ast-col-xs-4',
						'ast-col-xs-5',
						'ast-col-xs-6',
						'ast-col-xs-7',
						'ast-col-xs-8',
						'ast-col-xs-9',
						'ast-col-xs-10',
						'ast-col-xs-11',
						'ast-col-xs-12',
						'ast-col-sm-1',
						'ast-col-sm-2',
						'ast-col-sm-3',
						'ast-col-sm-4',
						'ast-col-sm-5',
						'ast-col-sm-6',
						'ast-col-sm-7',
						'ast-col-sm-8',
						'ast-col-sm-9',
						'ast-col-sm-10',
						'ast-col-sm-11',
						'ast-col-sm-12',
						'ast-col-md-1',
						'ast-col-md-2',
						'ast-col-md-3',
						'ast-col-md-4',
						'ast-col-md-5',
						'ast-col-md-6',
						'ast-col-md-7',
						'ast-col-md-8',
						'ast-col-md-9',
						'ast-col-md-10',
						'ast-col-md-11',
						'ast-col-md-12',
						'ast-col-lg-1',
						'ast-col-lg-2',
						'ast-col-lg-3',
						'ast-col-lg-4',
						'ast-col-lg-5',
						'ast-col-lg-6',
						'ast-col-lg-7',
						'ast-col-lg-8',
						'ast-col-lg-9',
						'ast-col-lg-10',
						'ast-col-lg-11',
						'ast-col-lg-12',
						'ast-col-xl-1',
						'ast-col-xl-2',
						'ast-col-xl-3',
						'ast-col-xl-4',
						'ast-col-xl-5',
						'ast-col-xl-6',
						'ast-col-xl-7',
						'ast-col-xl-8',
						'ast-col-xl-9',
						'ast-col-xl-10',
						'ast-col-xl-11',
						'ast-col-xl-12',

						// Astra Blog / Single Post.
						'ast-article-post',
						'ast-article-single',
						'ast-separate-posts',
						'remove-featured-img-padding',
						'ast-featured-post',

						// Astra Woocommerce.
						'ast-product-gallery-layout-vertical',
						'ast-product-gallery-layout-horizontal',
						'ast-product-gallery-with-no-image',

						'ast-product-tabs-layout-vertical',
						'ast-product-tabs-layout-horizontal',

						'ast-qv-disabled',
						'ast-qv-on-image',
						'ast-qv-on-image-click',
						'ast-qv-after-summary',

						'astra-woo-hover-swap',

						'box-shadow-0',
						'box-shadow-0-hover',
						'box-shadow-1',
						'box-shadow-1-hover',
						'box-shadow-2',
						'box-shadow-2-hover',
						'box-shadow-3',
						'box-shadow-3-hover',
						'box-shadow-4',
						'box-shadow-4-hover',
						'box-shadow-5',
						'box-shadow-5-hover',
					)
				);
			}

			return $classes;
		}