.home {
  position: relative;
  margin: 100px auto;
  background: url(/images/home_bg.png) no-repeat center center;
  background-size: contain;
  width: 1215px;
  height: 577px;
  .link1 {
    position: absolute;
    top: 160px;
    width: 250px;
    height: 250px;
  }
  .link2 {
    position: absolute;
    left: 400px;
    bottom: 0;
    width: 300px;
    height: 250px;
  }
  .link3 {
    position: absolute;
    top: 200px;
    right: 0;
    width: 300px;
    height: 300px;
  }
}
