#center {
    display: flex;
    padding: 3rem;
    border-radius: 1rem;
    background-color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

h1 {
    margin: 0 0 18px
}

p {
    margin: 0;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    font: 16px/1 Arial, sans-serif;
    margin: 0;
    height: 100vh;
    background-color: #ddd;
}