.container-zt {
  margin-top: 80px;
}
.container-zt .zt {
  width: auto;
  height: auto;
  margin: 0 auto;
  position: relative;
}
.container-zt_1 .zt_1 {
  width: auto;
  height: auto;
  margin: 0 auto;
  position: relative;
}