html {
  font-size: 3.2vw;
}
* {
  margin: 0;
  padding: 0;
  transition: 0.3s;
  -o-transition: 0.3s;
  -moz-transition: 0.3s;
  -webkit-transition: 0.3s;
  transition-timing-function: ease-out;
  -o-transition-timing-function: ease-out;
  -moz-transition-timing-function: ease-out;
  -webkit-transition-timing-function: ease-out;
  font-family: "PingFang SC", "苹方-简", "Microsoft YaHei", "微软雅黑";
  word-break: normal;
  text-decoration: none;
  text-align: center;
}
a {
  text-decoration: none;
  outline: none;
  color: #fff;
}
  
body{

}
#imgWrapper{
    box-sizing: border-box;
    width: 100vw;
    min-height: 58.25rem;
    background-image: url(../images/bg.jpg);
    background-size: contain;
    background-repeat: no-repeat;
}

a{
    display: block;
    position: absolute;
    box-sizing: border-box;
    background-size: contain;
    background-repeat: no-repeat;
}

#bt1{
  left: 9.2rem;
  top: 41rem;
  width: 13rem;
  height: 2.3rem;
  background-image: url(../images/bt1.png);
}

#bt2{
  left: 2.91rem;
  top: 11.55rem;
  width: 9.82rem;
  height: 2.1rem;
  background-image: url(../images/bt2.png);
}