* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Meiryo UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", sans-serif;
  background: #111;
  color: #eee;
  height: 100dvh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 18dvh;
  overflow: hidden;
  -webkit-user-select: none;
  user-select: none;
}

#app {
  text-align: center;
  width: 100%;
  padding: 1rem;
}

#clock {
  width: 80vmin;
  height: 80vmin;
}

#wakelock {
  position: fixed;
  bottom: 8px;
  left: 8px;
  font-size: 10px;
  font-family: inherit;
  background: none;
  border: none;
  color: #333;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

#wakelock.active {
  color: #555;
}

#version {
  position: fixed;
  bottom: 8px;
  right: 8px;
  font-size: 10px;
  color: #333;
}