.star {
    position: absolute;
    width: 2px;
    height: 2px;
    background-color: white;
    border-radius: 50%;
    box-shadow: 0 0 5px rgba(255, 255, 255, 0.8);
    animation: twinkleStar infinite alternate;
}

@keyframes twinkleStar {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}