The Save button is at the very bottom of the edit overlay window. You must click Save to update your webpage.
DO NOT close out of the edit overlay window with the X at the top right. You will not be cautioned that leaving the page will cause you to loose all your changes, but you will return to the webpage and NO changes will be saved.
Conversely, if you have made changes to a webpage but do not want to keep the changes, just close the edit overlay window with the X at the top right of the window.
Category: Drupal