Displaying a membrane, or container, around a document object on an electronic document page. In response to placing the insertion point (IP) on the page, a ghost membrane can be displayed on an output screen at the IP. After content is added at the IP, a membrane around the content can be displayed. This membrane can be continually displayed, even when an IP is not in the document object. One or more handles may be displayed around the membrane of a document object containing an IP or underlying a cursor. An IP can also be placed within a hit region associated with a membrane of a document object, allowing a user to add content to that document object at the IP. Similarly, selected text can be dragged from one document object to another document object and added to that document object when the selected text contacts a hit region of the document object.