.hero 
  .hero__title Hello World
  .cube
  .cube
  .cube
  .cube
  .cube
  .cube

@import url('https://fonts.googleapis.com/css?family=Montserrat:700');

.hero {
  background-color: #0040C1;
  position: relative;
  height: 100vh;
  overflow: hidden;
  font-family: 'Montserrat', sans-serif;
}

.hero__title {
  color: #fff;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 50px;
  z-index: 1;
}

.cube {
  position: absolute;
  top: 80vh;
  left: 45vw;
  width: 10px;
  height: 10px;
  border: solid 1px darken(#0040C1, 8%);
  transform-origin: top left;
  transform: scale(0) rotate(0deg) translate(-50%, -50%);
  animation: cube 12s ease-in forwards infinite;
  
  &:nth-child(2n) {
    border-color: lighten(#0040C1, 10%);
  }
  
  &:nth-child(2) {
    animation-delay: 2s;
    left: 25vw;
    top: 40vh;
  }
  
  &:nth-child(3) {
    animation-delay: 4s;
    left: 75vw;
    top: 50vh;
  }
  
  &:nth-child(4) {
    animation-delay: 6s;
    left: 90vw;
    top: 10vh;
  }
  
  &:nth-child(5) {
    animation-delay: 8s;
    left: 10vw;
    top: 85vh;
  }
  
  &:nth-child(6) {
    animation-delay: 10s;
    left: 50vw;
    top: 10vh;
  }
}

@keyframes cube {
  from {
    transform: scale(0) rotate(0deg) translate(-50%, -50%);   
    opacity: 1;
  }
  to {
    transform: scale(20) rotate(960deg) translate(-50%, -50%); 
    opacity: 0;
  }
}