.xxy_po{
	position: relative;
	padding: 0 25px;
}
.list2 .list2-flex .swiper-button-prev.swiper-button-black{
	position: absolute;
	left: 0;
	top: -50%;
	width: 20px;
	height: 20px;
    transform: rotateZ(180deg);
    outline: none;
}
.list2 .list2-flex .swiper-button-next.swiper-button-black{
	position: absolute;
	right: 0;
	top: -50%;
	width: 20px;
	height: 20px;
	outline: none;
}