@keyframes jello {
    11.1%,
    from,
    to {
        transform: none;
    }
    22.2% {
        transform: skewX(-12.5deg) skewY(-12.5deg);
    }
    33.3% {
        transform: skewX(6.25deg) skewY(6.25deg);
    }
    44.4% {
        transform: skewX(-3.125deg) skewY(-3.125deg);
    }
    55.5% {
        transform: skewX(1.5625deg) skewY(1.5625deg);
    }
    66.6% {
        transform: skewX(-0.78125deg) skewY(-0.78125deg);
    }
    77.7% {
        transform: skewX(0.390625deg) skewY(0.390625deg);
    }
    88.8% {
        transform: skewX(-0.1953125deg) skewY(-0.1953125deg);
    }
}

.jello {
    animation-name: jello;
    transform-origin: center;
}