.home .hero {
    animation: anim 50s infinite;
	background-position: center;
}

@keyframes anim {
    0% {
        background-size: calc(1920px *1.00);
        background-position: center;
    }
    25% {
        background-size: calc(1920px *1.10);
        background-position: top left;
    }
    50% {
        background-size: calc(1920px *1.00);
        background-position: center;
    }
    75% {
        background-size: calc(1920px *1.10);
        background-position: top right;
    }
    100% {
        background-size: calc(1920px *1.00);
        background-position: center;
    }
}