.category-dropdown .dropdown-box {
    padding: 0;
    left: 0;
    min-width: 24rem;
    color: #333;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    background-color: #fff;
    transition: z-index 0.3s,transform 0.3s;
    visibility: hidden;
    opacity: 0;
    top : 100%
}