derelict.css

body { margin: 0; }
#info {
  position: absolute;
  top: 10px;
  left: 10px;
  width: 100%;
  color: #00EE00;
  text-align: left;
  z-index: 90;
  display:block;
  font-family: 'VT323', 'Major Mono Display', monospace;
  font-size: 2em;
}
a {
  color: #00EE00;
  text-decoration: none;
}
a:hover {
  color: #55FF66;
  text-decoration: underline;
}
#bottom {
  position: absolute;
  bottom: 0;
  width: 100%;
  color: #00EE00;
  text-align: right;
  z-index: 91;
  display:block;
  font-family: 'VT323', 'Major Mono Display', monospace;
  font-size: 2em;
}
h1 {
  font-size: 2em;
}
/* scanlines from https://codepen.io/cgoudouris/pen/VKQBQR */
.scanlines {
  background: linear-gradient(
  to bottom,
  rgba(255,255,255,0),
  rgba(255,255,255,0) 50%,
  rgba(0,0,0,0.2) 70%,
  rgba(0,0,0,0.6)
  );
  background-size: 100% 0.3rem;
  border-radius: 2rem;
  position: absolute;
  z-index: 93;
}
.piece {
  display: block;
  height: 100%;
  left: 0;
  top: 0;
  width: 100%;
}
.noclick {
  pointer-events: none;
}
.glow {
  animation: crt-glow 60s infinite; 
  background:
  radial-gradient(circle at center,
  rgba(27,212,89,1) 0%,
  rgba(27,212,89,0.88) 58%,
  rgba(21,235,92,0.57) 80%,
  rgba(19,94,29,0.27) 93%,
  rgba(10,23,12,0) 100%);
  //filter: blur(10rem) opacity(0.1);
  opacity: 0.15;
  pointer-events: none; 
  position: fixed;
}
/* Tiles: */
.tile {
  width: 120px;
  height: 160px;
  box-shadow: 0px 0px 12px rgba(0,255,255,0.5);
  border: 1px solid rgba(127,255,255,0.25);
  font-family: Helvetica, sans-serif;
  text-align: center;
  line-height: normal;
  cursor: default;
}
.tile:hover {
  box-shadow: 0px 0px 12px rgba(0,255,255,0.75);
  border: 1px solid rgba(127,255,255,0.75);
}