html {
  height: 100%;
  overflow-y: hidden;
}

body {
  background-color: #000;
  color: #fff;
  height: 100%;
}

button {
  margin-top: -20px;
  font-size: 36px;
}

#buttons {
  height: 100%;
  width: 100%;
  text-align: center;
}

#timer {
  height: 100%;
  width: 100%;
}

#timer-contents {
  margin-top: -20px;
  font-size: 72px;
  font-family: Monaco, "Courier New";
  font-weight: bold;
}

table {
  padding: 0;
  margin: 0;
  width: 100%;
  height: 100%;
  border-collapse: collapse;
}

td {
  padding: 0;
  margin: 0;
  text-align: center;
  vertical-align: center;
}