html:before {
  content: " ";
  display: block; position: fixed;
  top: 0; left: 0; bottom: 0; right: 0;
  background: linear-gradient(rgba(0,0,0,0) 50%, rgba(0,0,0,0.16) 50%);
  z-index: 2;
  background-size: 100% 4px, 6px 100%;
  pointer-events: none;
}

body {
  background-color: black;
}

p {
  font-size: 32px;
  color: #C69AEF;
  font-family: Courier;
  -webkit-animation: glow 2s ease-in-out infinite alternate;
  -moz-animation: glow 2s ease-in-out infinite alternate;
  animation: glow 2s ease-in-out infinite alternate;
}

@-webkit-keyframes glow {
  from {
    text-shadow: 0 0 10px #fff, 0 0 20px #601AA1, 0 0 30px #601AA1, 0 0 40px #601AA1, 0 0 50px #601AA1, 0 0 60px #601AA1, 0 0 70px #601AA1;
  }
  to {
    text-shadow: 0 0 20px #fff, 0 0 30px #601AA1, 0 0 40px #601AA1, 0 0 50px #601AA1, 0 0 60px #601AA1, 0 0 70px #601AA1, 0 0 80px #601AA1;
  }
}

.center {
  position: fixed;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 3px white;
}