body {
  background-color: rgb(red, green, blue);
  overflow: hidden;
}

.hello {
  font-family: "Trebuchet MS", "Lucida Sans Unicode", "Lucida Grande",
    "Lucida Sans", Arial, sans-serif;
  color: #353535;
  text-align: center;
  font-size: 10rem;
}

@media screen and (max-width: 900px) {
  .hello {
    font-size: 15vw;
  }
}

.container {
  margin-top: 17em;
}

#privet {
  animation: privetAnimation 6.5s;
}

@keyframes privetAnimation {
  0% {
    opacity: 0%;
  }
  20% {
    opacity: 0%;
  }
  100% {
    opacity: 100%;
  }
}

#epileptique {
  animation: epileptiqueAnimation 8s;
}

@keyframes epileptiqueAnimation {
  0% {
    opacity: 0%;
  }
  40% {
    opacity: 0%;
  }
  100% {
    opacity: 100%;
  }
}

/* pattern */

#pattern {
  display: flex;
  flex-direction: column;
  position: absolute;
  flex-wrap: wrap;
  scale: 1.1;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  mix-blend-mode: normal;
  mix-blend-mode: multiply;
  mix-blend-mode: screen;
  mix-blend-mode: overlay;
  mix-blend-mode: darken;
  mix-blend-mode: lighten;
  mix-blend-mode: color-dodge;
  mix-blend-mode: color-burn;
  mix-blend-mode: hard-light;
  /* mix-blend-mode: soft-light; */
  /* mix-blend-mode: plus-darker; */
  backdrop-filter: grayscale(1) contrast(100);
  > .box {
    height: calc(100vh / 13);
    aspect-ratio: 1;
    flex-grow: 1;
    background-color: rgba(0, 0, 0, 0.548);
  }
  > .box:nth-child(2n) {
    background-color: rgba(255, 255, 255, 0.486);
  }
}

.rotate {
  animation: rotate 1.25s infinite;
}

@keyframes rotate {
  0% {
    rotate: 0deg;
    opacity: .25;
  }
  50% {
    scale: 1.6;
    opacity: 1;
  }
  100% {
    rotate: 360deg;
    opacity: .25;
  }
}