body {
    max-width: 800px;
    margin: auto;
    padding-top: 60px;
    text-align: center;
    font-family: Arial, sans-serif;
}

button {
    width: 250px;
    height: 100px;
    margin: 10px;
    font-size: 22px;
    cursor: pointer;
}

a {
    font-size: 20px;
}