.focus
{
    width: 300px;
    height: 280px;
    position: relative;
    margin-top: 10px;
}
.xx
{
    width: 300px;
    height: 280px;
    overflow: hidden;
    position: relative;
}
.f-img-list
{
    height: 280px;
    overflow: hidden;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 100;
    width: 162px;
}
.f-img-list li
{
    height: 280px;
    text-align: center;
    width: 300px;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 101;
}
.f-img-list li.on
{
    z-index: 105;
}
.f-img-list li img
{
    width: 300px;
    height: 220px;
}
.focus-page-btn
{
    width: 44px;
    height: 44px;
    background: url('../image/focus-page-btns.png') no-repeat;
    position: absolute;
    top: 90px;
    z-index: 110;
}
.focus-btn-prev
{
    background-position: 0 0;
    left: 0;
}
.focus-btn-next
{
    background-position: -44px 0;
    right: 0;
}