===== Adding Custom JavaScript ===== In a story map, choose **Edit Story JavaScript** from the story menu. Any JavaScript you enter into this will be run immediately when your story is played. Your changes are saved as soon as you close the JavaScript editor. ===== Adding Custom CSS ===== In a story map, choose **Edit Story Stylesheet** from the story menu. Any CSS you enter into this will override the built-in styles of your story format. Your changes are saved as soon as you close the stylesheet editor.