*{
padding:0;
margin:0;
}
ul{
list-style: none;
}
a,img{
display: block;
}
.content-main{ position: relative; width: 1200px; height: 411px; margin-left: auto; margin-right: auto; margin-top: 50px; }
.content-btn{
position: absolute;
width:100px;
height:411px;
z-index:10;
cursor: pointer;
}
.prev-btn{
left:0;
top:0;
}
.next-btn{
right:0;
top:0;
}
.btn-img{
opacity:0.8;
display: block;
position: absolute;
left:0;
top:50%;
-webkit-transform: translatey(-50%);
-moz-transform: translatey(-50%);
-ms-transform: translatey(-50%);
-o-transform: translatey(-50%);
transform: translatey(-50%);
}
.lbtlist{
width:1100px;
height:411px;
}
.lbtlist li{
position: absolute;
left:0;
top:0;
overflow: hidden;
}