Nested Menu Height problem noticed in Chrome....
Using Chrome (v61.0.3163.100 (Official Build) (32-bit).
http://jqueryui.com/menu/
Notice the extra space above Electronics and Music in the menu.
If you remove:
list-style-image:
url("data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7")
from the styling of .ui-menu .ui-menu-item it gets rid of the extra space at the top.
Is that a Chrome bug? Don't see the issue in IE 11 or Firefox 56.