.bb_fade_slider{
  display: block;
  position: relative;
  list-style: none;
  overflow: hidden;
}

.bb_fade_slider > *{
  width: 100%;
  height: auto;
  position: absolute;
  left:0;
  top:0;
  opacity: 0
}

.bb_fade_slider > * span{
  position: relative;
  height: inherit;
}

.bb_fade_slider > * .caption{
  position: absolute;
  bottom: -100px;
  left:0;
  background-color:rgba(0,0,0,0.6);
  z-index: 9999;
  color: #FFF;
  width: 100%
}

.bb_fade_slider > * :first-child{
  opacity: 1;
}

.bb_fade_slider > * .img_item{
  max-width: 100%;
  height: auto;
}


/*背景*/
.bb_fade_slider > .main_01{
	background: url(../image/bg_main_01.jpg);
}
.bb_fade_slider > .main_02{
	background: url(../image/bg_main_02.jpg);
}
.bb_fade_slider > .main_03{
	background: url(../image/bg_main_03.jpg);
}
.bb_fade_slider > .main_04{
	background: url(../image/bg_main_04.jpg);
}


@media only screen and (max-width:1024px){
	.bb_fade_slider > .main_01,
	.bb_fade_slider > .main_02,
	.bb_fade_slider > .main_03,
	.bb_fade_slider > .main_04{
		background: none;
	}
	
}