html, body {
  margin: 0;
  height: 100%;
  font-family: Arial, sans-serif;
  color: white;
  text-align: center;
  text-shadow: -1px -1px 1px rgba(255,255,255,.1), 1px 1px 1px rgba(0,0,0,.5), 4px 4px 6px rgba(54,54,54,0.52);
}

body {
  background: url('../images/welcome.png') no-repeat center center fixed;
  background-size: cover;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  
}

.overlay {
  background: rgba(0, 0, 0, 0.25);
  margin: 5px 5px 5px 5px,
}


h3 {
  font-size: 3rem;
  margin: 0 0 1rem 0;
  letter-spacing: 2px;
}

#countdown {
  font-size: 1.5rem;
  font-weight: bold;
  margin-top: 1rem;
  letter-spacing: 1px;
}