.particles{
    position: absolute;
    background-color: red;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    visibility: hidden;
}
.particles::before{
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: #8a7b7ebb;
    border-radius: 50%;
    animation: moveParticles 2s linear infinite;
    visibility: visible;
}
@keyframes moveParticles{
    0%{
        transform: translate(0px);
    }
    100%{
        transform: translate(300px);
    }
}