public function get_inline_css() {
		if ( $this->get_pre_selectors() ) {
			$inline_css = sprintf(
				'%1$s { %2$s }',
				implode( ',', $this->get_selectors() ),
				$this->get_properties()
			);
			foreach ( $this->get_pre_selectors() as $pre_selector ) {
				$inline_css = sprintf(
					'%1$s { %2$s }',
					$pre_selector,
					$inline_css
				);
			}
			return $inline_css;
		}

		return sprintf(
			'%1$s { %2$s }',
			implode( ',', $this->get_selectors() ),
			$this->get_properties()
		);
	}