@media screen and (min-width: 1210px) {

.main_slide { margin-left: 200px; position:relative; z-index: -1; background: #000;  }
.ms_li { width: 100%; height: 100%;  overflow: hidden;  }
.ms_li > img { width: 100%;  height: 100%; }

.main_section { width: 100%; height: 100%; display: block;  }
.sub_section { width: 100%; height: 100%; display: block;  }



}