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

section {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  background: #6f00ff;
  animation: changeColor 5s linear infinite;
}

@keyframes changeColor {
  0% {
    filter: hue-rotate(0deg);
  }

  100% {
    filter: hue-rotate(120deg);
  }
}

section main {
  color: #2f00ff;
  font-family: consolas;
  font-weight: 300;
  letter-spacing: 10px;
}

section .loader {
  position: relative;
  display: flex;
}

section .loader .dot {
  position: relative;
  display: block;
  width: 20px;
  height: 20px;
  background: #ffffff;
  box-shadow: 0 0 10px #ff0000, 0 0 20px #ff0000, 0 0 40px #ff0000,
    0 0 60px #ff0000, 0 0 80px #ff0000, 0 0 100px + #ff0000;
  margin: 20px 10px;
  transform: scale(0.1);
  border-radius: 50%;
  animation: animateDot 2s linear infinite;
  animation-delay: calc(0.1s * var(--i));
}

section .loader:lat-child .dot {
  animation-delay: calc(-0.1s * var(--i));
}

@keyframes animateDot {
  0% {
    transform: scale(0.1);
  }

  10% {
    transform: scale(1);
  }

  50%,
  100% {
    transform: scale(0.1);
  }
}

.logo {
  width: 900px;
}