.focusBox {
    position: relative;
    width: 500px;
    height: 280px;
    overflow: hidden;
    text-align: center;
    background: white;
}

.focusBox .pic img {
    width: 500px;
    height: 280px;
    display: block;
}

.focusBox .txt-bg {
    position: absolute;
    bottom: 0;
    z-index: 1;
    height: 38px;
    padding-top: 10px;
    width: 100%;
    background: #333;
    filter: alpha(opacity=70);
    opacity: 0.6;
    overflow: hidden;
}

.focusBox .txt {
    position: absolute;
    bottom: 0;
    z-index: 2;
    height: 28px;
    line-height: 28px;
    width: 100%;
    overflow: hidden;
}

.focusBox .txt li {
    display: block;
    position: absolute;
    width: 480px;
    padding: 0 10px;
    height: 28px;
    line-height: 28px;
    text-align: center;
    overflow: hidden;
}

.focusBox .txt li a {
    display: block;
    width: 100%;
    color: #fff;
    font-size: 14px;
    font-weight: bold;
    text-align: center;
    text-decoration: none;
}

.focusBox .num {
    position: absolute;
    display: block;
    width: 80px;
    height: 10px;
    z-index: 3;
    bottom: 28px;
    margin: 0 auto;
    left: 0;
    right: 0;
    text-align: center;
    clear:both;
}

.focusBox .num li {
    position: relative;
    float: left;
    display: inline-block;
    *display: inline;
    width: 10px;
    height: 10px;
    cursor: pointer;
    background: url(TLimagesyt2017slider_dot.png) 0px 0px no-repeat;
    font-size: 0px;
    text-indent: -20px;
    line-height: 0px;
    margin: 0 3px;
}

.focusBox .num li.on {
    background: url(TLimagesyt2017slider_dot.png) 0px -10px no-repeat;
}