nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    background-color: lightblue;
    padding: 20px;
    margin: 0;
}

nav li {
    margin: 0;
}

nav a {
    display: block;
    color: darkblue;
    text-decoration: none;
    border: 2px solid darkblue;
    padding: 15px 30px;
    font-size: large;
    font-family: sans-serif;
    text-align: center;
}

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

main {
    margin: 20px;
}

nav a.aktivna {
    background-color: darkblue;
    color: white;
    font-weight: bold;
}