.sg-banner-item > div {
  height: 100%;
  background-repeat: no-repeat;
}
.sg-banner-img1 {
  background: url(/image/0.jpg);
  background-size: cover;
}
.sg-banner-img2 {
  background: url(/image/1.jpg);
  background-size: cover;
}
.sg-banner-img3 {
  background: url(/image/2.jpg);
  background-size: cover;
}