body {
  background: linear-gradient(-45deg, #925cf0, #b93ce7, #1b7e89, #19aaba);
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
}

@keyframes gradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.logo {
  width: 220px;
  padding: 20px;
  -webkit-transition: all 0.3s ease;
  -moz-transition: all 0.3s ease;
  transition: all 0.3s ease;
}

.logo:hover {
  opacity: 0.68 !important;
}

.area {
  /* background-image: -webkit-linear-gradient(to left bottom, #19aaba, #1b7e89);
  background-image: -moz-linear-gradient(to left bottom, #19aaba, #1b7e89);
  background-image: linear-gradient(to left bottom, #19aaba, #1b7e89); */
  width: 100%;
  z-index: -1;
}

.circles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
}

.circles li {
  position: absolute;
  display: block;
  list-style: none;
  width: 20px;
  height: 20px;
  background: rgba(255, 255, 255, 0.2);
  animation: animate 9s linear infinite;
  bottom: -150px;
}

.circles li:nth-child(1) {
  left: 5%;
  width: 80px;
  height: 80px;
  animation-delay: 0s;
  animation-duration: 10s;
}

.circles li:nth-child(2) {
  left: 10%;
  width: 40px;
  height: 40px;
  animation-delay: 2s;
  animation-duration: 10s;
}

.circles li:nth-child(3) {
  left: 70%;
  width: 40px;
  height: 40px;
  animation-delay: 4s;
}

.circles li:nth-child(4) {
  left: 80%;
  width: 60px;
  height: 60px;
  animation-delay: 0s;
  animation-duration: 9s;
}

.circles li:nth-child(5) {
  left: 2%;
  width: 40px;
  height: 40px;
  animation-delay: 0s;
}

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

.circles li:nth-child(7) {
  left: 25%;
  width: 150px;
  height: 150px;
  animation-delay: 7s;
}

.circles li:nth-child(8) {
  left: 50%;
  width: 40px;
  height: 40px;
  animation-delay: 15s;
  animation-duration: 9s;
}

.circles li:nth-child(9) {
  left: 6%;
  width: 25px;
  height: 25px;
  animation-delay: 2s;
  animation-duration: 8s;
}

.circles li:nth-child(10) {
  left: 85%;
  width: 150px;
  height: 150px;
  animation-delay: 0s;
  animation-duration: 7s;
}

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

  100% {
    transform: translateY(-1000px) rotate(720deg);
    opacity: 0;
    border-radius: 50%;
  }
}