#Download {
    width: 930px;
    height: 107px;
    text-align: center;
    position: absolute;
    top: 900px;
    left: 50%;
    margin-left: -414px;
    z-index: 51;
    border-radius: 5px;
}

#Download .btn_down_s1 {
    float: left;
    width: 347px;
    height: 107px;
    text-indent: -999em;
    margin-right: 152px;
    animation: sc 2s infinite linear;
    background: url("../images/down.png"/*tpa=http://43.240.157.14:1688/1120/918ps/images/down.png*/) no-repeat left top;
}

#Download .btn_down_s2 {
    float: left;
    width: 347px;
    height: 107px;
    text-indent: -999em;
    margin-left: 0px;
    animation: sc 2s infinite linear;
    background: url("../images/cz.png"/*tpa=http://43.240.157.14:1688/1120/918ps/images/cz.png*/) no-repeat left top;
}
@keyframes sc {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(0.8);
    }

    100% {
        transform: scale(1);
    }
}