body {
    background-color: #100A15;
    height: 100%;
    padding: 0;
}

.container {
    width: 93vw;
    height: 95vh;
    margin: 5px;
    padding: 1em;
    display: flex;
    align-items: center;
    justify-content: center;
}

.rainDrop {
    background-color: cyan;
    width: 1px;
    height: 20px;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1000;
    animation: falling 0.4s infinite linear;
}

@keyframes falling {
    from {
        transform: translate(0, 0px);
    }
    to {
        transform: translate(0, 90vh);
    }
}