.main {
  float: right;
  width: 750px;
}

.city {
  margin-bottom: 50px;
}
.city .skitter,
.city .slider-container {
  height: 407px;
  overflow: hidden;
}
.city .slider-container img {
  display: block;
  width: 100%;
  height: auto;
}
.city .deco-line {
  position: relative;
  z-index: 21;
  height: 6px;
  margin-top: -6px;
  border-left: 0;
  background-color: transparent;
}
.city .deco-line:before {
  width: 140px;
  height: 6px;
  background-color: #175cd6;
}
.city .city-introduction {
  background-color: #f7f7f7;
  padding: 40px 40px 20px;
}
.city .city-introduction .heading {
  font-size: 18px;
  font-weight: bold;
  color: #222;
  padding-bottom: 20px;
  border-bottom: 1px dashed #d9d9d9;
}
.city .city-introduction .heading small {
  font-size: 18px;
  font-weight: normal;
  margin-left: 15px;
}
.city .city-introduction .detail {
  font-size: 16px;
  line-height: 1.65;
  color: #333;
  margin-top: 26px;
}
.city .city-introduction .detail p {
  text-indent: 2em;
  margin-top: 0;
  margin-bottom: 22px;
}