body {
    background: #008080;
    margin: 0;
    padding: 16px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

.message {
    text-align: center;
}

.window {
    max-width: 960px;
    width: 100%;
}

table {
    width: 100%;
}