*{
    margin: 0px;
    padding: 0px;
}

body{
    font-family: 'Exo', sans-serif;
}


.area{
    z-index: 1;
}

.circles {
    position: absolute;
    top: 0px;
    left: 0;
    width: 100%;
    height: 648px;
    overflow: hidden;
}
@media (max-width: 980px) {
    .circles {
        height: 927px;
        top: 2vw;
    }
}

.circles li{
    position: absolute;
    display: block;
    list-style: none;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.2);
    animation: animate 25s cubic-bezier(0, 0.24, 1, 0.56) infinite;
    bottom: -200px;
}
/*
.circles li:nth-child(1){
    left: 25%;
    width: 80px;
    height: 80px;
    animation-delay: 0s;
}


.circles li:nth-child(2){
    left: 10%;
    width: 20px;
    height: 20px;
    animation-delay: 2s;
    animation-duration: 12s;
}

.circles li:nth-child(3){
    left: 70%;
    width: 20px;
    height: 20px;
    animation-delay: 4s;
}

.circles li:nth-child(4){
    left: 40%;
    width: 60px;
    height: 60px;
    animation-delay: 0s;
    animation-duration: 18s;
}

.circles li:nth-child(5){
    left: 65%;
    width: 20px;
    height: 20px;
    animation-delay: 0s;
}

.circles li:nth-child(6){
    left: 75%;
    width: 110px;
    height: 110px;
    animation-delay: 3s;
}

.circles li:nth-child(7){
    left: 35%;
    width: 150px;
    height: 150px;
    animation-delay: 7s;
}

.circles li:nth-child(8){
    left: 50%;
    width: 25px;
    height: 25px;
    animation-delay: 15s;
    animation-duration: 45s;
}

.circles li:nth-child(9){
    left: 20%;
    width: 15px;
    height: 15px;
    animation-delay: 2s;
    animation-duration: 35s;
}

.circles li:nth-child(10){
    left: 85%;
    width: 150px;
    height: 150px;
    animation-delay: 0s;
    animation-duration: 11s;
}
@media (max-width: 980px) {
    .circles li:nth-child(10){
        left: 80%;
    }
}
*/


/*  画像読み込み
----------------------------------*/
.circles li:nth-child(1){
    background: url(../img/animation/b01.png) no-repeat;
    background-size: 65%;
    left: 12%;
    width: 150px;
    height: 150px;
    animation-delay: 0s;
}


.circles li:nth-child(2){
    background: url(../img/animation/g01.png) no-repeat;
    background-size: 90%;
    left: 33%;
    width: 80px;
    height: 80px;
    animation-delay: 2s;
    animation-duration: 12s;
}

.circles li:nth-child(3){
    background: url(../img/animation/b02.png) no-repeat;
    background-size: 100%;
    left: 70%;
    width: 50px;
    height: 50px;
    animation-delay: 4s;
}

.circles li:nth-child(4){
    background: url(../img/animation/g03.png) no-repeat;
    background-size: 100%;
    left: 40%;
    width: 80px;
    height: 80px;
    animation-delay: 0s;
    animation-duration: 18s;
}

.circles li:nth-child(5){
    background: url(../img/animation/r03.png) no-repeat;
    background-size: 100%;
    left: 58%;
    width: 40px;
    height: 40px;
    animation-delay: 0s;
}

.circles li:nth-child(6){
    background: url(../img/animation/r02.png) no-repeat;
    background-size: 100%;
    left: 75%;
    width: 110px;
    height: 110px;
    animation-delay: 3s;
}

.circles li:nth-child(7){
    background: url(../img/animation/g02.png) no-repeat;
    background-size: 100%;
    left: 40%;
    width: 150px;
    height: 150px;
    animation-delay: 7s;
}

.circles li:nth-child(8){
    background: url(../img/animation/r01.png) no-repeat;
    background-size: 100%;
    left: 50%;
    width: 55px;
    height: 55px;
    animation-delay: 15s;
    animation-duration: 45s;
}

.circles li:nth-child(9){
    background: url(../img/animation/s02.png) no-repeat;
    background-size: 100%;
    left: 3%;
    width: 200px;
    height: 200px;
    animation-delay: 3s;
    animation-duration: 15s;
}

.circles li:nth-child(10){
    background: url(../img/animation/s01.png) no-repeat;
    background-size: 100%;
    left: 85%;
    width: 150px;
    height: 150px;
    animation-delay: 0s;
    animation-duration: 11s;
}
@media (max-width: 980px) {
    .circles li:nth-child(10){
        left: 80%;
    }
}



@keyframes animate {

    0%{
        transform: translateY(0) rotate(0deg) scale(1);
        opacity: 1;
        border-radius: 0;
    }

    100%{
        transform: translateY(-1000px) rotate(720deg) scale(0.3);
        opacity: 0;
        border-radius: 0;
    }

}