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

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
}

.loader {
  width: 250px;
  height: 100px;
  display: flex;
  justify-content: space-between;
  gap: 15px;
}

.loader span {
  width: 30px;
  height: 100%;
  background: linear-gradient(to right,#00fffc,rgb(30,28,28));
  border-radius: 50px;
  animation: loadAnim 1s infinite cubic-bezier(.2,.68,.18,1.08);
}

@keyframes loadAnim {
  0%,100% {
    transform: scaleY(1);
    opacity: 1;
  }
  50% {
    transform: scaleY(.4);
    opacity: 0.1;
  }
}

.loader span:nth-child(1){
  animation-delay: -.6s;
}
.loader span:nth-child(2){
  animation-delay: -.5s;
}
.loader span:nth-child(3){
  animation-delay: -.4s;
}
.loader span:nth-child(4){
  animation-delay: -.3s;
}
.loader span:nth-child(5){
  animation-delay: -.2s;
}
.loader span:nth-child(6){
  animation-delay: -.1s;
}