body{
background-color: #f4f4f4;
}
#clockContainer {
  position: relative;
  margin: auto;
  height: 40vw;
  width: 40vw;
  background: url(clock.png) no-repeat;
  background-size: 100%;
}
#hour,
#minute,
#second {
  position: absolute;
  background: black;
  border-radius: 10px;
  transform-origin: bottom;
}
#currentTime {
  text-align: center;
  font-size: 5vw;
}
#hour {
  width: 1.8%;
  height: 25%;
  top: 25%;
  left: 48.85%;
  opacity: 0.8;
}
#minute {
  width: 1.6%;
  height: 32%;
  top: 18.4%;
  left: 49.2%;
  opacity: 0.8;
}
#second {
  width: 1%;
  height: 40%;
  top: 10%;
  left: 49.48%;
  opacity: 0.8;
}