.bg-bubbles{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.bg-bubbles li{
    position: absolute;
    list-style: none;
    display: block;
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.15);
    bottom: -160px;
    animation: square 25s infinite;
    transition-timing-function: linear;
}

.bg-bubbles li:nth-child(1){
    left: 10%;
}

.bg-bubbles li:nth-child(2){
    left: 20%;
    width: 80px;
    height: 80px;
    animation-delay: 2s;
    animation-duration: 17s;
}

.bg-bubbles li:nth-child(3){
    left: 25%;
    animation-delay: 4s;
}

.bg-bubbles li:nth-child(4){
    left: 40%;
    width: 60px;
    height: 60px;
    animation-duration: 22s;
    background-color: rgba(255,255,255,0.25);
}

.bg-bubbles li:nth-child(5){
    left: 70%;
}

.bg-bubbles li:nth-child(6){
    left: 80%;
    width: 120px;
    height: 120px;
    animation-delay: 3s;
    background-color: rgba(255,255,255,0.2);
}

.bg-bubbles li:nth-child(7){
    left: 32%;
    width: 160px;
    height: 160px;
    animation-delay: 7s;
}

.bg-bubbles li:nth-child(8){
    left: 55%;
    width: 20px;
    height: 20px;
    animation-delay: 15s;
    animation-duration: 40s;
}

.bg-bubbles li:nth-child(9){
    left: 25%;
    width: 10px;
    height: 10px;
    animation-delay: 2s;
    animation-duration: 40s;
    background-color: rgba(255,255,255,0.3);

}

.bg-bubbles li:nth-child(10){
    left: 90%;
    width: 160px;
    height: 160px;
    animation-delay: 11s;
}

/* Gelembung baru */
.bg-bubbles li:nth-child(11) {
    left: 15%;
    width: 70px;
    height: 70px;
    animation-delay: 5s;
    background-color: rgba(255, 255, 255, 0.1);
  }
  .bg-bubbles li:nth-child(12) {
    left: 30%;
    width: 50px;
    height: 50px;
    animation-duration: 30s;
    background-color: rgba(255, 255, 255, 0.3);
  }
  .bg-bubbles li:nth-child(13) {
    left: 50%;
    width: 30px;
    height: 30px;
    animation-delay: 8s;
  }
  .bg-bubbles li:nth-child(14) {
    left: 60%;
    width: 90px;
    height: 90px;
    animation-delay: 3s;
    background-color: rgba(255, 255, 255, 0.2);
  }
  .bg-bubbles li:nth-child(15) {
    left: 75%;
    width: 40px;
    height: 40px;
    animation-duration: 35s;
  }
  .bg-bubbles li:nth-child(16) {
    left: 85%;
    width: 60px;
    height: 60px;
    animation-delay: 12s;
  }
  .bg-bubbles li:nth-child(17) {
    left: 45%;
    width: 110px;
    height: 110px;
    animation-delay: 9s;
    background-color: rgba(255, 255, 255, 0.15);
  }
  .bg-bubbles li:nth-child(18) {
    left: 25%;
    width: 35px;
    height: 35px;
    animation-delay: 4s;
  }
  .bg-bubbles li:nth-child(19) {
    left: 5%;
    width: 150px;
    height: 150px;
    animation-duration: 45s;
  }
  .bg-bubbles li:nth-child(20) {
    left: 95%;
    width: 50px;
    height: 50px;
    animation-delay: 6s;
  }

@keyframes square{
    0%{
        transform: translateY(0);
    }
    100%{
        transform: translateY(-1000px) rotate(600deg);
    }
}