.dust {
    position: absolute;
    top: -10vh;
    width: 2vh;
    height: 2vh;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    animation: drift linear infinite;
    filter: blur(2.5vh);
    z-index: 1;
    background-color: #799;
}

@keyframes drift {
    0% {
        transform: translateY(0) translateX(0) scale(0.8);
        opacity: 1;
    }
    10% {
        transform: translateY(3vh) translateX(6vh) scale(1);
    }
    20% {
        transform: translateY(3vh) translateX(0vh) scale(1);
    }
    30% {
        transform: translateY(6vh) translateX(3vh) scale(0.7);
    }
    50% {
        transform: translateY(6vh) translateX(-6vh) scale(1);
        opacity: 0.5;
    }
    70% {
        transform: translateY(-3vh) translateX(-6vh) scale(1.2);
    }
    80% {
        transform: translateY(0) translateX(-6vh) scale(1);
    }
    90% {
        transform: translateY(3vh) translateX(-3vh) scale(1);
        opacity: 0.5;
    }
    100% {
        transform: translateY(0) translateX(0) scale(0.8);
        opacity: 1;
    }
}