.bannerbox
{
    width: 966px;
    height: 398px;
    overflow: hidden;
    margin: 0 auto;
}
#focus
{
    width: 966px;
    height: 398px;
    clear: both;
    overflow: hidden;
    position: relative;
    float: left;
}
#focus ul
{
    width: 966px;
    height: 398px;
    float: left;
    position: absolute;
    clear: both;
    padding: 0;
    margin: 0;
}
#focus ul li
{
    float: left;
    width: 966px;
    height: 398px;
    overflow: hidden;
    position: relative;
    padding: 0;
    margin: 0;
}
#focus .preNext
{
    width: 550px;
    height: 398px;
    position: absolute;
    top: 0;
    cursor: pointer;
}
#focus .pre
{
    left: 0;
    background: url(../image/sprite.png) no-repeat left center;
}
#focus .next
{
    right: 0;
    background: url(../image/sprite1.png) no-repeat right center;
}