body {
    background-color: #343B3C;
    color: lightgrey;
    font-family: Arial, Helvetica, sans-serif;
}

div {
    margin-left: auto;
    margin-right: auto;
    width: 100%;
    text-align: center;
    margin-top: 50vh;
    transform: translateY(-50%);
}

h1 {
    font-size: 4em;
}
h2 {
    font-size: 2em;
}