mmenu-js/dist/extensions/popup/mmenu.popup.css

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

.mm-menu_popup{-webkit-transition:opacity .4s ease;-o-transition:opacity .4s ease;transition:opacity .4s ease;opacity:0;-webkit-box-shadow:0 2px 10px rgba(0,0,0,.3);box-shadow:0 2px 10px rgba(0,0,0,.3);height:80%;min-height:140px;max-height:880px;top:50%;left:50%;bottom:auto;right:auto;z-index:2;-webkit-transform:translate3d(-50%,-50%,0);transform:translate3d(-50%,-50%,0)}.mm-menu_popup.mm-menu_opened~.mm-slideout{-webkit-transform:none!important;-ms-transform:none!important;transform:none!important;z-index:0}.mm-menu_popup.mm-menu_opened~.mm-wrapper__blocker{-webkit-transition-delay:0s!important;-o-transition-delay:0s!important;transition-delay:0s!important;z-index:1}.mm-wrapper_opening .mm-menu_popup{opacity:1}