* {
  box-sizing: border-box;
}

body {
  position: relative;
  min-height: 100vh;
  background-image: url(https://lyra-1253656474.file.myqcloud.com/about/img/background_big.jpg);
  background-size: cover;
  background-position: right center;
}

.header {
  display: block;
  height: 30vh;
}

.count {
  position: relative;
  width: 60vw;
  left: 10%;
  background-image: url(https://lyra-1253656474.file.myqcloud.com/about/img/text.png);
  background-size: contain;
  background-repeat: no-repeat;
}

.count:before {
  display: block;
  content: "";
  padding-top: 25%;
}

.count span {
  position: absolute;
  display: block;
  margin-top: -9%;
  left: 8%;
  width: 15%;
  font-size: 3em;
  text-align: right;
  color: #DDD;
}

#hour {
  width: 10%;
  left: 33%;
}

#minute {
  width: 10%;
  left: 61%;
}

#second {
  width: 10%;
  left: 80%;
}

@media screen and (max-width: 479px) {
  .header {
    height: 82vh;
  }

  .count {
    left: 5%;
    width: 90vw;
  }

}

@media screen and (min-width: 768px) and (orientation: portrait){
  .count {
    width: 40%;
  }
}