.petal {
    position: relative;
    width: 100%;
    top: -340px;
    text-align: left;
}

.petal span {
    display: inline-block;
    overflow: hidden;
    width: 5px;
    height: 5px;
    border-radius: 200px 10px 200px 200px;
    background: linear-gradient(to bottom, #faaca8, #ddd6f3);
    z-index: 1;
    transform: skewX(30deg);
    backface-visibility: visible;
    -webkit-animation: fallingSakura1 8s ease infinite;
}

.petal span:nth-of-type(3n+2) {
    -webkit-animation: fallingSakura2 8s ease infinite;
}

.petal span:nth-of-type(3n+1) {
    -webkit-animation: fallingSakura3 8s ease infinite;
}


.petal span:nth-of-type(n)   { -webkit-animation-delay: -1.9s;}
.petal span:nth-of-type(2n)  { -webkit-animation-delay: 3.9s;}
.petal span:nth-of-type(3n)  { -webkit-animation-delay: 2.3s;}
.petal span:nth-of-type(4n)  { -webkit-animation-delay: 4.4s;}
.petal span:nth-of-type(5n)  { -webkit-animation-delay: 5s;  }
.petal span:nth-of-type(6n)  { -webkit-animation-delay: 3.5s;}
.petal span:nth-of-type(7n)  { -webkit-animation-delay: 2.8s;}
.petal span:nth-of-type(8n)  { -webkit-animation-delay: 1.5s;}
.petal span:nth-of-type(9n)  { -webkit-animation-delay: 3.3s;}
.petal span:nth-of-type(10n) { -webkit-animation-delay: 2.5s;}
.petal span:nth-of-type(11n) { -webkit-animation-delay: 1.2s;}
.petal span:nth-of-type(12n) { -webkit-animation-delay: 4.1s;}
.petal span:nth-of-type(13n) { -webkit-animation-delay: 5.8s;}
.petal span:nth-of-type(14n) { -webkit-animation-delay: -0.1s;}
.petal span:nth-of-type(15n) { -webkit-animation-delay: 6.3s;}
.petal span:nth-of-type(16n) { -webkit-animation-delay: -1s;}
.petal span:nth-of-type(17n) { -webkit-animation-delay: 7.4s;}
.petal span:nth-of-type(18n) { -webkit-animation-delay: -0.3s;}
.petal span:nth-of-type(19n) { -webkit-animation-delay: 8.3s;}
.petal span:nth-of-type(20n) { -webkit-animation-delay: -0.6s;}
.petal span:nth-of-type(21n) { -webkit-animation-delay: 7.7s;}

.petal span:nth-of-type(2n+2) {
    background: linear-gradient(to right, #fffbd5, #F15F79);
}

.petal span:nth-of-type(3n+1) {
    background: linear-gradient(to right, #DD5E89, #F7BB97);
}

.petal span:nth-of-type(3n+2) {
    border-radius: 20px 1px;
}
.petal span:nth-of-type(3n+3) {
    transform: rotateX(-180deg);
}

.petal span:nth-of-type(3n+2) {
    animation-duration: 12sec;
}

.petal span:nth-of-type(4n+2) {
    animation-duration: 9sec;
}

.petal span:nth-of-type(5n+2) {
    width: 12px;
    height: 12px;
    box-shadow: 1.5px 1.5px 8px #fc7bd1;
}

.petal span:nth-of-type(4n+3) {
    width: 10px;
    height: 10px;
    box-shadow: 1px 1px 6px #fc7bd1;
}
.petal span:nth-of-type(n)    { height:23px; width:30px; }

.petal span:nth-of-type(2n+1)    { height:11px; width:16px; }

.petal span:nth-of-type(3n+2)  { height:17px; width:23px; }

@-webkit-keyframes fallingSakura1 {
    0% {
        -webkit-transform:
            translate3d(0,0,0)
            rotateX(0deg);
        opacity: 1;
    }  
    
    100% {
        -webkit-transform:
            translate3d(400px,1200px,0px)
            rotateX(-290deg);
        opacity: 0.3;
    }
}

@-webkit-keyframes fallingSakura2 {
    0% {
        -webkit-transform:
            translate3d(0,0,0)
            rotateX(-20deg);
    opacity: 1;
    }  
    
    100% {
        -webkit-transform:
            translate3d(200px,1200px,0px)
            rotateX(-70deg);
            opacity: 0.2;
    }
}

@-webkit-keyframes fallingSakura3 {
    0% {
        -webkit-transform:
            translate3d(0,0,0)
            rotateX(90deg);
    opacity: 1;
    }
    
    100% {
        -webkit-transform:
            translate3d(500px,1200px,0px)
            rotateX(290deg);
        opacity: 0;
    }
}