body {
    padding: 0;
    margin: 0;
    width: 100%;
    min-height: 100%;
    text-align: center;
    background: linear-gradient(to top right, #61d9de, #7677e5, #e739f6);
    background-repeat: no-repeat;
    background-attachment: fixed;
    font-size: 14px;
    font-family: 'Open Sans', sans-serif;
}
.container {
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.article {
    color: white;
    font-size: 2rem;
    font-weight: 300;
}
.article .number {
    font-size: 10rem;
    font-weight: bold;
}
.article .sk {
    font-size: 1rem;
}