body, html {
    height: 100%;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f0f0f0;
}

.container {
    text-align: center;
}

#octopus {
    width: 200px;
    height: 200px;
    animation: rotate 5s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}