| Attributes | Common Children |
| id | <menuitem /> |
| align | <menu> |
| orient | |
| autostretch | |
| oncreate | |
| ondestroy |
Though <menupopup> inherits some of the positioning
attributes from <box> like its menu brethren, it is not as flexible
as these others because of the way that it is displayed: menupopups
pop up when the user clicks the menu itself. For the most part, they take
their sizing and positioning information from the menuitems they contain.
They are containers for menuitems.