#banner{
	min-width: 1400px;
	height: 500px;
  overflow: hidden;
  position: relative;
}

#banner a {
  text-decoration: none;
}
#banner img {
  width: 100%;
  min-height: 400px;
	position: absolute;
  top: 0;
  left: 0;
}
#banner .btns {
  width: 100%;
  text-align: center;
  position: absolute;
  bottom: 10px;
}
#banner .banner-btn {
  border: none;
  outline: none;
  padding: 0;
  margin: 0 5px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background-color: #999;
  opacity: 0.5;
  cursor: pointer;
}
#banner .active {
  background-color: #333;
}
#banner .btn-left {
  font-size: 100px;
  color: gray;
  left: 0;
  top: 50%;
  margin-top: -75px;
  position: absolute;
  opacity: 0.5;
  z-index: 10;
}
#banner .btn-right {
  font-size: 100px;
  color: gray;
  right: 0;
  top: 50%;
  margin-top: -75px;
  position: absolute;
  opacity: 0.3;
  z-index: 10;
}
#banner .btn-left:hover,
#banner .btn-right:hover {
  opacity: 1;
}
@media only screen and (min-width: 1400px) and (max-width:1800px) {
	#banner{
	min-width: 1400px;
	height: 450px;
	overflow: hidden;
  position: relative;
}

	#banner .btns {
  width: 100%;
  text-align: center;
  position: absolute;
  bottom: 30px;
}
}
@media only screen and (min-width: 400px) and (max-width:1400px) {
	#banner{
	min-width: 1400px;
	height: 400px;
	overflow: hidden;
  position: relative;
}

	#banner .btns {
  width: 100%;
  text-align: center;
  position: absolute;
  bottom: 20px;
}
}