.userInterface {
  width: 50vh;
  height: 30vh;
  position: absolute;
  text-align: center;
  left: 50%;
  top: 60%;
  margin: -50px 0 0 -150px;
  background-color: orange;
  border-radius: 25px;
}

.number {
    font-size: 5vh;
    padding-bottom: 0;
    margin-bottom: 0;
}

.units {
    padding-top: 0;
    margin-top: 0;
}

button {
    border-radius: 25px;
    width: 15vh;
}

button:hover {
    cursor: pointer;
    background-color: black;
    color: white;
}

.flashingLight {
  width: 50px;
  height: 50px;
  position: absolute;
  left: 50%;
  top: 30%;
  margin: -25px 0 0 -25px;
}

.darkened {
  background-color: black;
}