.screen {
  animation:colorPulse 5s infinite ease-in-out;
  background-image:radial-gradient(#101510, #111);
  box-shadow:0 0 5vmin 1vmin #000 inset;
  box-sizing:border-box;
  font-family:'Fira Mono', monospace;
  font-size: calc(8px + 1.25vmin);
  height:100vh;
  overflow:hidden;
  padding:10vmin;
  width:100vw;
}

.screen:before {
  //animation:wave 1s infinite ease-in-out;
  content:"";
  height:20vh;
  left:0;
  opacity:.1;
  position:absolute;
  right:0;
  z-index:1;
  pointer-events:none !important;
}

.screen:after {
  background-image:linear-gradient(transparent, transparent 3px, #222);
  background-size:4px 4px;
  bottom:0;
  content:"";
  left:0;
  pointer-events:none !important;
  position:absolute;
  right:0;
  top:0;
  z-index:2;
}

p:last-child:after {
  //animation:blink 1s infinite;
  //content:"_";
}

@keyframes colorPulse {
  0%, 100% {
    color:#090;
  }
  48%, 52% {
    color:#060;
  }
  50% {
    color:#030;
  }
}

@keyframes wave {
  0% {
    box-shadow:0 -10vh 20vh #090;
    top:-100vh;
  }
  48%, 52% {
    box-shadow:0 -10vh 20vh #060;
  }
  50% {
    box-shadow:0 -10vh 20vh #030;
  }
  100% {
    box-shadow:0 -10vh 20vh #090;
    top:80vh;
  }
}

@keyframes blink {
  50% {
    opacity:0;
  }
}