body {
    background-color: lightcyan;
    font-family: "Courier New", monospace;
    max-width: 900px;
    margin: auto;
}

header {
    font-size: 50px;
    margin: 50px;
    text-align: center;
}

h1 {
    text-transform: uppercase;
    font-size: 100%;
}

h2 {
    text-transform: uppercase;
    font-size: 150%;
    margin: 20px;
    text-align: center;
}


nav {
    border-bottom: 2px solid #000;
    border-top: 2px solid #000;
    font-size: 120%;
}

nav a {
    color: navy;
    text-decoration: none;
    margin-left: 20px;
}

nav a:hover {
    color: cadetblue;
}

div {
    font-size: 20px;
}

.flex-wrapper {
    display: flex;
    justify-content: space-between;
    flex-direction: column;
    min-height: 80vh;
}

.container {
    justify-content: normal;
}

.footer {
    color: navy;
}