body {

    margin: 0;
    overflow: hidden;

    background-color: #111;
    color: #eee;
    font-family: monospace;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 10px;
}

.container {
    text-align: center;
}

#animation-box {
    background-color: #222;
    padding: 5px;
    border: 2px solid #555;
    display: inline-block;
    font-size: 14px;
    white-space: pre;
    line-height: 1.1em;
}