body{
  position:relative;
}
main{
  position:relative;
  z-index:10;
}
.content-main{
  position:relative;
  z-index:10;
  background:#f5f5f5;
}
.content-main .main-box{
  position:relative;
  z-index:10;
}
@media (max-width:1400px){
}
@media (max-width:767px){
  .da-box-list-4-unit-h-179{
    height:20vw;
  }
}