nav {
    float: left;
    width: 100%;
    background-color: black;
    opacity: 1;
    border-bottom: 2px solid white;
    position: fixed;
    
}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}

nav a:hover {
    background-color: white;
    color: black;
}

li a {
    width: 150px;
    text-decoration: none;
    color: white;
    border: white, 2px;
    float: right;
    display: inline;
    text-align: center;
    padding: 5px;
    margin: 0;
}