.down {
                    transform: rotate(45deg);
                    -webkit-transform: rotate(45deg);
                }

                .dropdown-content {
                    display: none;
                    position: absolute;
                    background-color: #f9f9f9;
                    min-width: 160px;
                    border: 1px solid #000000;
                    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
                    z-index: 1;
                }

                .dropdown-content a {
                    color: black;
                    text-decoration: none;
                    display: block;
                    text-align: left;
                }

                .dropdown-content a:hover {
                    background-color: #f1f1f1;
                }

                .dropdown:hover .dropdown-content {
                    display: block;
                }