body {
    margin: 0;
    overflow: hidden;
    background: linear-gradient(to bottom, #001f3f, #0074D9);
    height: 100vh;
}

.snowflake {
    position: fixed;
    top: -10px;
    background: white;
    border-radius: 50%; /* Dzięki temu kształt to kółko */
    animation: fall linear infinite;
}

@keyframes fall {
    to {
        transform: translateY(100vh);
    }
}