body,ul,li{
	margin: 0;
	padding: 0;
}
body{ background-color: #272727; color: white; }

.zy-slide{
	/* 两个 section (前一张、后一张) 要做相对定位 */
	position: relative;
	width: 754px;
	height: 292px;
	margin: 100px auto 0;
	/*background-color: red;*/
	/* 799 - 754 = 45 */
}
.zy-slide .zy-prev,.zy-slide .zy-next{
	position: absolute;
	top: 50%;
	width: 40px;
	height: 80px;
	margin-top: -40px;
	line-height: 80px;
	text-align: center;
	font-size: 13px;
	cursor: pointer;
}

.zy-slide .zy-prev{
	left: -60px;
}
.zy-slide .zy-next{
	right: -60px;
}
.zy-slide ul{
	position: relative;
	width: 754px;
	height: 292px;

}
.zy-slide li{
	position: absolute;
	width: 0;
	height: 0;
	list-style: none;
	background-color: black;
	border-radius: 5px;
}
.zy-slide li img{
	width: 100%;
	height: 100%;
}