.quality_bottom{
    margin-top: 30px;
}
.quality_bottom .down{
    width: 226px;
    height: 65px;
    background: url(../images/quality/down.jpg);
    display: block;
    margin-bottom: 20px;
}
.quality_bottom .movie iframe{
    width: 462px;
    height: 288px;
}