diff --git a/assets/img/PFC-icon.png b/assets/img/PFC-icon.png
new file mode 100644
index 0000000..7b287a7
Binary files /dev/null and b/assets/img/PFC-icon.png differ
diff --git a/hangar-wp-plugin.php b/hangar-wp-plugin.php
index b706593..e7253b9 100644
--- a/hangar-wp-plugin.php
+++ b/hangar-wp-plugin.php
@@ -44,7 +44,9 @@ define( 'HANGAR_WPPLUGIN_VERSION', '1.0.0' );
 * define Plugin path
 * https://developer.wordpress.org/reference/functions/plugin_dir_path/#comment-1113
 * * * * * * * * * * * * * * * * * * */
-define( 'HANGAR_WPPLUGIN_PATH', plugin_dir_path( __FILE__ ) );
+define( 'HANGAR_WPPLUGIN_PATH', plugin_dir_path( __FILE__ ) ); //in server
+
+define( 'HANGAR_WPPLUGIN_URL', plugin_dir_url( __FILE__ ) ); //public
 
 include( HANGAR_WPPLUGIN_PATH . 'includes/hangar-init-textdomain.php');
 
diff --git a/includes/hangar-extracontent-in-postpage.php b/includes/hangar-extracontent-in-postpage.php
index c487bad..70b625d 100644
--- a/includes/hangar-extracontent-in-postpage.php
+++ b/includes/hangar-extracontent-in-postpage.php
@@ -64,8 +64,8 @@ if ( ! function_exists( 'hangar_extra_content_callback' ) ) :
     $hangar_extra_content_stored_meta = get_post_meta( $post->ID );
     ?>
     <p>
-      <span class="row hangar-title"><?php _e( 'Estas son las opciones de cada entrada o página de la web.', 'hangar-wpplugin-textdomain' )?></span>
-      <span class="row hangar-title"><?php _e( 'Para mostrar las entradas o páginas debes poner el <pre>[shortcode]</pre> que genera el icono <em>PFC</em> que ves en la barra de edición de texto.', 'hangar-wpplugin-textdomain' )?></span>
+      <span class="row hangar-title"><?php _e( 'Estas son las opciones de cada <em>entrada</em> o <em>página</em> de la web.', 'hangar-wpplugin-textdomain' )?></span>
+      <span class="row hangar-title"><?php _e( 'Para mostrar las entradas o páginas debes poner el <code>[shortcode]</code> que genera el icono <img src="' . HANGAR_WPPLUGIN_URL . 'assets/img/PFC-icon.png" alt="PFC icon" style="margin-bottom:-8px;"/> que ves en la barra de edición de texto.', 'hangar-wpplugin-textdomain' )?></span>
       <div class="row hangar-content">
       </div>
     </p>
@@ -79,7 +79,7 @@ if ( ! function_exists( 'hangar_extra_content_callback' ) ) :
         $settings = array(
           'textarea_name' =>  'hangar_extra_content_wysiwyg_summary',
           'media_buttons' =>  true,
-          'textarea_rows' =>  3,
+          'textarea_rows' =>  10,
           // https://www.kevinleary.net/customizing-tinymce-wysiwyg-editor-wordpress/
           // 'tinymce'       =>  array(
           //   'toolbar1'      => 'formatselect,bold,italic,link,unlink,charmap,removeformat,wp_more',
@@ -133,8 +133,9 @@ if ( ! function_exists( 'hangar_show_extra_content' ) ) :
       $meta_value = get_post_meta( get_the_ID(), 'hangar_extra_content_wysiwyg_summary', true );
       // Checks and displays the retrieved value
       if( !empty( $meta_value ) ) {
-      	echo '<div class="hangar-">';
-      	echo $meta_value;
+      	echo '<div class="hangar-extra-content">';
+        // to do shortcodes: https://developer.wordpress.org/reference/functions/apply_filters/
+      	echo apply_filters( 'the_content', $meta_value);
       	echo '</div>';
       }
     }