.categoryitems{overflow:hidden;transition:max-height .3s ease-in-out,opacity .2s ease-in-out;max-height:0;opacity:0}.categoryitems.accordion-active{opacity:1}@keyframes fadeIn{0%{opacity:.8}to{opacity:1}}.menuheader,.expandable{transition:background-color .2s ease;position:relative}.menuheader:hover,.expandable:hover{background-color:#f5f5f5}.menuheader:focus,.expandable:focus{outline:2px solid #007bff;outline-offset:-2px}