*{
  margin: 0;
  padding: 0;
  box-sizing: border-box
}
.showimg {width: 100%;height: auto;}
#show-img {width:100%; height: 450px; }
.small-img {height: 70px;position: relative;left: 0;max-width: 350px;width: 100%;
margin: 15px auto 0;}

.small-img .icon-left, .small-img .icon-right{
  width: 12px;
  height: 24px;
  cursor: pointer;
  position: absolute;
  top: 0;
  bottom: 0;
  margin: auto 0;
}
.small-img .icon-left{
  transform: rotate(180deg)
}
.small-img .icon-right{
  right: 0;
}
.small-img .icon-left:hover, .small-img .icon-right:hover{
  opacity: .5;
}
.small-container{
  width: 300px;
  height: 70px;
  overflow: hidden;
  position: absolute;
  left: 0;
  right: 0;
  margin: 0 auto;
}
.small-container div{
  width:800%;
  position: relative;
  z-index: 999;    
}

.small-container .show-small-img{
  width: 70px;
  height: 70px;
  margin-right: 6px;
  cursor: pointer;
  float: left;
  border: 1px solid #f2f2f2;
}
.small-container .show-small-img:last-of-type{
  margin-right: 0;
}

#big-img {z-index: 999;background: #fff;max-height:300% !important;max-width:300%;
height:300% !important;width:300% !important;}