Astra_Minify::get_dynamic_css()

		public static function get_dynamic_css() {

			// Get the cache dir and css key.
			$cache_dir = self::get_cache_dir();
			$css_slug  = self::_asset_slug();

			// No css data, recompile the css.
			if ( ! $css_data ) {
				self::render_css();
				return self::get_dynamic_css();
			}

			// Return the url.
			return $css_data;
		}