navbar.css

ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    z-index: 4;
    /*top: 0;*/
    width: 100%;
    /*position: sticky;*/
    overflow: hidden;
    background-color: #333;
    }
            
li {
    float: left;
    }
            
li a, .dropbtn {
    display: inline-block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    }
            
li a:hover, .dropdown:hover .dropbtn {
    background-color: #111;
    }
            
li.dropdown {
    display: inline-block;
    }
            
.dropdown-content {
    display: none;
    position: absolute;
    background-color: aliceblue;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 4;
    }
            
.dropdown-content a {
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
    z-index: 4;
    }

.dropdown-content a:hover {
    background-color:white;
    }
            
.dropdown:hover .dropdown-content {
    display: block;
    }