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

body {
  font-family: 'Courier New', Courier, monospace;
}
section {
  height: 100vh;
  background: #000;
}
section::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(to left,#f00,#ff0,#0f0,#ff0,#0ff,#00f);
  mix-blend-mode: color;
}
h1 {
  color: #fff;
  font-size: 5em;
  position: absolute;
  top: 40%;
  transform: translateY(-40%);
  text-align: center;
  width: 100%;
}
h1 span {
  display: inline-block;
  animation: juma 1s linear forwards;
  opacity: 0;
}
@keyframes juma {
  0% {
    transform: rotateY(90deg);
    filter: blur(10px);
    opacity: 0;
  }
  100% {
    transform: rotateY(0deg);
    filter: blur(0px);
    opacity: 1;
  }
}
video {
  height: 100vh;
}

h1 span:nth-child(1) {
  animation-delay: 1;
}
h1 span:nth-child(2) {
  animation-delay: 1.25s;
}
h1 span:nth-child(3) {
  animation-delay: 1.5s;
}
h1 span:nth-child(4) {
  animation-delay: 1.75s;
}
h1 span:nth-child(5) {
  animation-delay: 2s;
}
h1 span:nth-child(6) {
  animation-delay: 2.25s;
}h1 span:nth-child(1) {
  animation-delay: 2.5s;
}
h1 span:nth-child(7) {
  animation-delay: 3s;
}
h1 span:nth-child(8) {
  animation-delay: 3.5s;
}
h1 span:nth-child(9) {
  animation-delay: 4s;
}
h1 span:nth-child(10) {
  animation-delay: 4.5s;
}
h1 span:nth-child(11) {
  animation-delay: 5s;
}
h1 span:nth-child(12) {
  animation-delay: 5.5s;
}