header{
  width: 100%;
  height: 1.2rem;
  padding:0 .2rem;
  box-sizing: border-box;
  background: #fff;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid #eee;
  position: fixed;
  top: 0;
  left: 0;
}
.height{
  height: 1.2rem;
}

header .back,header .more{
  display: block;
  width: 1.6rem;
  height: 1.2rem;
  display: flex;
  font-size: .4rem;
  line-height: 1.2rem;
  color: #444;
}
header .back .icon-zuo{
  font-size: .4rem;
}
header .back p,header .more p{
  padding-left: .1rem;
}
header .more p{
  width: 100%;
  text-align: center;
}
header h2{
  width: 50%;
  height: 1.2rem;
  text-align: center;
  font-size: .42rem;
  line-height: 1.2rem;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  margin: auto;
  color: #333;
}
.mapbox{
  width: 100%;
  height: 15rem;
  background: #ccc;
}