* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  background: #0c192c;
}
.background {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}
.bubbles {
  position: relative;
  display: flex;
}
.bubbles span {
  position: relative;

  width: 25px;
  height: 25px;
  background: #4fc3dc;
  margin: 0 4px;
  border-radius: 50px;
  box-shadow: 0 0 0 10px #4fc3dc44, 0 0 50px #4fc3dc, 0 0 100px #a9e5f2;
  animation: animate 15s linear infinite;
  animation-duration: calc(900s / var(--i));
}
.bubbles span:nth-child(even) {
  background: #ff2d75;
  box-shadow: 0 0 0 10px #ff2d7544, 0 0 50px #ff2d75, 0 0 100px #f7528c;
}
@keyframes animate {
  0% {
    transform: translateY(100vh) scale(0);
  }
  100% {
    transform: translateY(-10 vh) scale(1);
  }
}
.box {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}
.container {
  background-color: salmon;
  border: 5px solid #fff;
  height: 300px;
  width: 750px;
  border-radius: 20px;
  text-align: center;
  z-index: 1;
}
p {
  padding-top: 30px;
  color: #fff;
  font-size: 25px;
}
input {
  width: 300px;
  height: 50px;
  margin: 25px auto;
  font-size: 30px;
  padding: 0;
}
#btn {
  margin: 25px auto 25px 5px;
  height: 60px;
  width: 150px;
  padding: 0;
  font-size: 30px;
  text-align: center;
}
@media (max-width: 765px) {
  .container {
    height: auto;
    width: auto;
  }
  .box {
    padding-left: 30px;
    padding-right: 30px;
  }
}