#iWrap {
    transition: 150ms ease;
    animation: spin 1s infinite;
    transform-style: preserve-3d;
}

@keyframes spin {
    0% {
        transform: scale(1.0);
    }
    15% {
        transform: scale(1.2);
    }
    25% {
        transform: scale(1.0);
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1.2);
    }
}
/* styling */