Hi, the Lanthanum Style does not run with the 3 Level menu from this addon. Here the css code i use: Code: /************* Brivium Navigation Menu Level 3 ************/ .Menu .blockLinksList, .Menu { overflow: visible; } .Menu .blockLinksList { padding: 0; } .Menu .blockLinksList.secondaryContent > li { position: relative; } .Menu .blockLinksList.secondaryContent > li ul { display: none; background: @contentBackground; max-height: 400px; min-width: 200px; overflow: auto; position: absolute; top: 0; left: @menuMinWidth; z-index: 9999; @property "menu"; font-size: 11px; border: 1px solid @primaryLight; border-top: 5px solid @primaryLight; overflow: hidden; box-shadow: 0px 5px 5px rgba(0,0,0, 0.5); @property "/menu"; box-shadow: 2px 5px 5px rgba(0,0,0, 0.5); } .Menu .blockLinksList.secondaryContent > li:hover ul { display: block; }