public function enqueue_styles() {
			$list             = 'enqueued';
			$enqueue_css_list = array( 'calculators-ads' );
			foreach ( $enqueue_css_list as $css ) {
				if ( wp_script_is( $css, $list ) ) {
					return;
				}

				wp_enqueue_style( $css );

			}

		}