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


		body {
			font: 1.3rem Inconsolata, monospace;
		background-color: black;
		background-image: radial-gradient(
			limegreen, black 100%
		);
		height: 100vh;
		}	
		
		main {
		font: 1.3rem Inconsolata, monospace;
		
		text-align: center;
		
		}
		
		body::after {
  content: "";
  pointer-events: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.20),
    rgba(0, 0, 0, 0.20) 1px,
    transparent 3px,
    transparent 5px
  );
  animation: flicker 2s ease-in-out infinite;
} 



@keyframes flicker {
  0%   { opacity: 1; }
  10%  { opacity: 0.5; }
  20%  { opacity: 1; }
  30%  { opacity: 0.5; }
  40%  { opacity: 0.3; }
  50%  { opacity: 0.6; }
  60%  { opacity: 1; }
  70%  { opacity: 0.9; }
  80%  { opacity: 0.75; }
  90%  { opacity: 0.5; }
  100% { opacity: 1; }
}