footer {
    height: 21px;
    padding: 2px;

    background-color: lightgray;
    box-shadow: 0px -0.5mm 0px 0px rgb(238, 239, 240);

    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: center;
}

nav {
    width: 100%;
    height: 100%;
}