.slider{
    position: relative;
    height: 310px;
    width: 725px;
    overflow: hidden;
}
.slider-content{
    overflow: hidden;
    height: 310px;
    position: relative;
    left: 0;
    top: 0;
}
.slider .slider-content li{
    width: 725px;
    height: 310px;
    float: left;
}
.slider-content li img{
    width: 100%;
    height: 100%;
}
.slider-btn {
    position: absolute;
}
.next{
    margin-left: 80px;
}
.slider-btn {
    display: block;
    width: 44px;
    height: 44px;
    /*opacity: 0.6;
    filter: alpha(opacity=60);*/
}
.slider-btn.next {
    background: url("../../images/slider_next_btn.png") no-repeat;
    position: absolute;
    top: 45%;
    right: 20px;display:none;
}
.slider-btn.prev {
    background: url("../../images/slider_prev_btn.png") no-repeat;
    position: absolute;
    top: 45%;
    left: 20px;display:none;
}
.dots {
    overflow: hidden;
    position: absolute;
    bottom: 20px;
    right: 50%;
    text-align: center;
    z-index: 1;
}
.dots li {
    float: left;
    width: 8px;
    height: 8px;
    overflow: hidden;
    border-radius: 50%;
    margin: 0 4px;
    background: #FFF;
    cursor: pointer;
    border: 2px solid #8f8f8f;
}
.dots li.active {
    background: #464747;border-color:#464747;
}
.w1_centre .slider{width:1200px;height:400px;}
.w1_centre .slider-content{height:400px;}
.w1_centre .slider .slider-content li{width:1200px;height:400px;}
.pro_centre .slider{height:400px;}
.pro_centre .slider-content{height:400px;}
.pro_centre .slider .slider-content li{height:400px;}