.navbar {
    background-color: var(--primary-color);
    opacity: 10;
    color: #fff;
    height: 70px;
}

.navbar ul {
    display: flex;
}

.navbar a {
    color: #fff;
    padding: 10px;
    margin: 0 5px;
}

.navbar ul a:hover {
    border-bottom: 2px #fff solid;
}

.navbar .flex {
    justify-content: space-between;
}