body, html {
  height: 100%;
  margin: 0;
  padding: 0;
}

.bgimg {
  background: linear-gradient(45deg, #0a0a0a, #1a0033, #330066);
  background-image: url('https://images.unsplash.com/photo-1550745165-9bc0b252726f?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80');
  height: 100%;
  background-position: center;
  background-size: cover;
  position: relative;
  color: #00ff00;
  font-family: "Courier New", Courier, monospace;
  font-size: 25px;
  text-shadow: 0 0 10px #00ff00;
}

.topleft {
  position: absolute;
  top: 0;
  left: 16px;
}

.bottomleft {
  position: absolute;
  bottom: 0;
  left: 16px;
  width: 80%;
  height: 60px;
  overflow: hidden;
}

.sliding-text {
  display: flex;
  animation: slideHorizontal 200s linear infinite;
}

.sliding-text p {
  min-width: 100vw;
  margin: 0;
  padding: 0 50px;
  font-size: 18px;
  white-space: nowrap;
}

@keyframes slideHorizontal {
  0% { transform: translateX(100%); }
  100% { transform: translateX(-2000%); }
}

.middle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

#demo {
  font-size: 48px;
  font-weight: 400;
  font-family: 'DSEG7 Classic', 'Seven Segment', monospace;
  text-shadow: 0 0 10px #00ff00;
  letter-spacing: 8px;
  color: #00ff00;
  background: #0a0a0a;
  padding: 20px 30px;
  border: 3px solid #333;
  border-radius: 5px;
  display: inline-block;
  text-transform: uppercase;
  filter: contrast(1.2);
}

hr {
  margin: auto;
  width: 40%;
}