#menu {
  margin: 0;
  padding: 0;
  position: fixed;
  left: 10px;
  top: 10px;
  list-style-type: none;
  z-index: 70;
}

#menu li {
  float: left;
  margin: 0 10px 0 0;
  font-size: 14px;
}

#menu a {
  float: left;
  padding: 10px 20px;
  background-color: #fff;
  color: #333;
  text-decoration: none;
}

#menu .active a {
  color: #fff;
  background-color: #333;
}

.section {
  text-align: center;
  font: 50px "Microsoft Yahei";
  color: #fff;
}
.section1 {
   background: url(/pc/image/home/背景/Group\ 2.jpg) no-repeat;
  }
.section2 {
  background: url(/pc/image/home/背景/Group\ 26.jpg) no-repeat;
}
.section3 {
  background: url(/pc/image/home/背景/Group\ 27.jpg) no-repeat;
}
.section4 {
  background: url(/pc/image/home/背景/Group\ 28.jpg) no-repeat;
}
.section5 {
  background: url(/pc/image/home/背景/Group\ 29.jpg) no-repeat;
}