function renderBodyLineHightField( $args ) {
		unset( $args['label_for'], $args['class'] );
		$this->renderField(
			[
				'id' => 'pdf_body_line_height',
				'name' => 'pressbooks_theme_options_' . $this->getSlug(),
				'option' => 'pdf_body_line_height',
				'value' => ( isset( $this->options['pdf_body_line_height'] ) ) ? $this->options['pdf_body_line_height'] : $this->defaults['pdf_body_line_height'],
				'description' => $args[0],
				'append' => $args[1],
				'type' => 'text',
				'class' => 'small-text',
			]
		);
	}