CSS水滴动画

body{
    margin: 0;
}
.container{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #000;
    flex-direction: column;
    filter: contrast(30);
}
.drop{
    width: 100px;
    height: 100px;
    background-color: #fff;
    border-radius: 50%;
    position: absolute;
    filter: blur(20px);
    opacity: 0;
    animation: 2.5s drop linear infinite;
}
.drop:nth-child(2) {
    animation-delay: .5s;
}
.drop:nth-child(3) {
    animation-delay: .7s;
}

.collection{
    width: 100px;
    height: 100px;
    background-color: #fff;
    border-radius: 50%;
    filter: blur(20px);
    animation: 3s collection linear infinite;
}
span{
    position: absolute;
    font-family: Helvetica;
    font-size: 30px;
}

@keyframes drop{
    0%{
        transform: scale(.7) translateY(-600%);
        opacity: 0;
    }
    50%{
        transform: scale(.4) translateY(-80%);
        opacity: 1;
    }
    100%{
        transform: scale(.3) translateY(0px);
    }
}

@keyframes collection{
    0%{
        transform: scale(1) rotate(0deg);
    }
    50%{
        transform: scale(1.3) rotate(180deg);
        width: 90px;
        border-top-left-radius: 40%;
        border-bottom-left-radius: 45%;
    }
    100%{
        transform: scale(1) rotate(360deg);
    }
}