.banner {
    overflow: hidden;
    position: relative;
}

.banner > ul {
    display: none;
    height: 400px;
    position: absolute;
    top:0;
    left: 0;
}

.banner > ul > li  {
    float: left;
    height: 400px;
}

.banner > ul > li > a {
    display: block;
    font-size: 200px;
    text-align: center;
    font-weight: bold;
    height: 400px;
}

.left-btn,.right-btn {
    width: 51px;
    height: 51px;
    position: absolute;
    top:175px;opacity: 0;
    background: url(../images/right-btn.png);
    cursor: pointer;

}

.left-btn {
    left: -52px;
    background: url(../images/left-btn.png);
}
.left-btn:hover{
    background: url(../images/left-btn-hover.png);
}
.right-btn{
    right: -52px;
}
.right-btn:hover{
    background: url(../images/right-btn-hover.png);
}

.img-btn-list {
    position: absolute;
    bottom: 0;
    left: 0;
}


.img-btn-list > span  {
    display: inline-block;
    width: 43px;
    height: 6px;
    margin-right: 7px;
    cursor: pointer;
    background-color: #d7dcf1;
}

.img-btn-list > span.current {
    background-color: #008f26;
}