body, html {
  height: 100%;
  margin: 0;
  font-family: sans-serif;
}
#board {
  width: 100%;
  height: 100%;
}
.dice {
  border: 1px solid #222;
  box-shadow: inset 0 0 1rem #999;
  border-radius: 1rem;
  text-align: center;
  font-size: 4rem;
  font-weight: bold;
  width: 25%;
}
.dice-content {
  display: inline-block;
}
#timer {
  text-align: center;
}
#timer-content {
  border: 1px solid black;
  border-radius: 1rem;
  color: white;
  height: 5rem;
  line-height: 5rem;
  font-size: 3rem;
}
#timer-progress {
  width: 100%;
  background-color: black;
  height: 5rem;
  position: absolute;
  border-radius: 1rem;
}
#timer-text {
  position: absolute;
  text-align: center;
  width: 100%;
}