body {
  width: 100% !important;
  min-width: 1100px !important;
  background: url(http://www.bj.xinhuanet.com/azbr/images/bg.jpg) center 40px no-repeat;
}

* {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

nav li {
  display: inline-block;
}

nav a {
  display: block;
  padding: 6px 12px;
  text-decoration: none;
}

.main-container {
  width: 1100px;
}

.intro p {
  text-indent: 2rem;
}

.bg-rainbow {
  background: url(http://www.bj.xinhuanet.com/zt2019/8yue/bjszgh/images/bg-red1.png)
    no-repeat bottom;
}

.video-pic {
  position: relative;
}

.icon-play {
  position: absolute;
  right: 150px;
  top: 242px;
  z-index: 999;
}

.swiper-container {
  width: 100%;
  height: 100%;
}

.swiper-slide {
  text-align: center;
  font-size: 18px;
  background: #fff;
  /* Center slide text vertically */
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
}