.listree-submenu-heading{cursor:pointer}ul.listree{list-style:none}ul.listree-submenu-items{list-style:none;border-left:1px dashed black;white-space:nowrap;margin-right:4px;padding-left:20px}div.listree-submenu-heading.collapsed:before{content:"+";margin-right:4px}div.listree-submenu-heading.expanded:before{content:"-";margin-right:4px}.scrollable-menu{height:auto;max-width:800px;overflow-y:hidden}