body {
    width: 100vw;
    height: 100vh;
}

div {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

h1 {
    font-size: 64;
    font-weight: 900;
}

h2 {
    font-size: 48;
    font-weight: 500;
}