header {
    position: relative;
    text-transform: uppercase;
    font-family: "Fira Sans", sans-serif;
}

header > h1 {
    position: absolute;
    top: 50px;
    left: 50px;
    font-size: 60px;
    font-weight: 400;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 400px;

    position: absolute;
    top: 62px;
    right: 50px;
    font-size: 30px;
}

nav > a#active {
    text-decoration: underline;
}