Astra_Builder_Base_Dynamic_CSS::prepare_advanced_typography_css( string $section_id, string $selector )

		public static function prepare_advanced_typography_css( $section_id, $selector ) {

			$font_size = astra_get_option( 'font-size-' . $section_id );

			/**
			 * Typography CSS.
			 */
			$css_output_desktop = array(

				$selector => array(

					// Typography.
					'font-size' => astra_responsive_font( $font_size, 'desktop' ),
				),
			);

			$css_output_tablet = array(

				$selector => array(

					'font-size' => astra_responsive_font( $font_size, 'tablet' ),
				),
			);

			$css_output_mobile = array(

				$selector => array(

					'font-size' => astra_responsive_font( $font_size, 'mobile' ),
				),
			);

			/* Parse CSS from array() */
			$css_output  = astra_parse_css( $css_output_desktop );
			$css_output .= astra_parse_css( $css_output_tablet, '', astra_get_tablet_breakpoint() );
			$css_output .= astra_parse_css( $css_output_mobile, '', astra_get_mobile_breakpoint() );

			return $css_output;
		}