page{
  background: #ccc;
}
.container {
  position: relative;
  width: 100%;
  height: 100%;
  font-size: 14px;
  color: #000;  
}
.nav_left{
  width: 25%;
  height: 100vh;
  background: #f5f5f5;
  text-align: center;
  overflow: hidden;
  overflow-y: auto;
  position: fixed;
  left:0;
  top:0;
}
.nav_left .nav_left_items{
  height: 30px;
  line-height: 30px;
  padding: 6px 0;
  border-bottom: 1px solid #dedede;
}
.nav_left .nav_left_items.active{
  background: #fff;
}
.nav_right{
  position: absolute;
  right: 0;
  top:0;
  width: 75%;
  min-height: 100vh;
  margin: 0;
  padding: 5px;
  background: #fff;
  box-sizing: border-box;
  
}
.nav_right .nav_right_item{
  float: left;
  width: auto;
  text-align: center;
  padding:5px;
  box-sizing: border-box;
  background: #ccc;
  border: 1px solid #f1f1f1;
}
.nav_right .nav_right_item.active{
  background: #fff;
  border: 1px solid #f1f1f1;
}
.container .brand_item{
  float: left;
  width:50%;
  margin:0;
  padding:1em;
  background-color: #fff;
  border: 1px solid #f1f1f1;
  box-sizing: border-box;
  text-align: center;
  overflow: hidden;
}

.container .brand_item .pic{
  width: 6em;
  height: 6em;
}
.container .brand_item .pic image{
  width: 100%;
  height: 100%;
}
.brand_item_cont{
  width: 100%;
}

.brand_item_cont .name{
  margin: 10px 0;
  margin-bottom: 5px;
  display: block;
  width: 100%;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.brand_item_cont .ourprice{
  color: #ff4d00;
  font-weight: bold;
}

.brand_item_cont .marketprice{
  text-decoration: line-through;
  color: #939393;
}