#app {
  padding-top: 99px;
  width: 100%;
  min-height: 91vh;
}
.app-img-list {
  width: 100%;
}
.app-img-item {
  max-width: 1170px;
  margin: 0 auto;
  margin-bottom: 95px;
  display: flex;
  justify-content: center;
}
.item-img {
  cursor: pointer;

  width: 70%;
}