mmenu-js/dist/addons/dropdown/mmenu.dropdown.css

The best javascript plugin for app look-alike on- and off-canvas menus with sliding submenus for your website and webapp.

.mm-menu_dropdown{-webkit-box-shadow:0 2px 10px rgba(0,0,0,.3);box-shadow:0 2px 10px rgba(0,0,0,.3);height:80%}.mm-wrapper_dropdown .mm-slideout{-webkit-transform:none!important;-ms-transform:none!important;transform:none!important;z-index:0}.mm-wrapper_dropdown .mm-wrapper__blocker{-webkit-transition-delay:0s!important;-o-transition-delay:0s!important;transition-delay:0s!important;z-index:1}.mm-wrapper_dropdown .mm-menu_dropdown{z-index:2}.mm-wrapper_dropdown.mm-wrapper_opened:not(.mm-wrapper_opening) .mm-menu_dropdown{display:none}.mm-menu_tip-bottom:before,.mm-menu_tip-left:before,.mm-menu_tip-right:before,.mm-menu_tip-top:before{content:'';background:inherit;-webkit-box-shadow:0 2px 10px rgba(0,0,0,.3);box-shadow:0 2px 10px rgba(0,0,0,.3);display:block;width:15px;height:15px;position:absolute;z-index:-1;-webkit-transform:rotate(45deg);-ms-transform:rotate(45deg);transform:rotate(45deg)}.mm-menu_tip-left:before{left:22px}.mm-menu_tip-right:before{right:22px}.mm-menu_tip-top:before{top:-8px}.mm-menu_tip-bottom:before{bottom:-8px}