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

body {
  height: 100vh;
  background-color: #090909;
  display: grid;
  place-items: center;
}

.loader {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
}

.bar {
  width: 15px;
  height: 35px;
  background-color: #3bcbdb;
  animation: loading 0.8s infinite ease-in-out;
}

.bar-1 {
  animation-delay: 0.15s;
}
.bar-2 {
  animation-delay: 0.3s;
}
.bar-3 {
  animation-delay: 0.45s;
}

@keyframes loading {
  0%,
  80%,
  100% {
    height: 32px;
  }
  40% {
    height: 52px;
  }
}