x .bg-about1 {
    width: 98px;
    height: 100px;
    background: url('css_sprites.png') -130px -130px;
}

x .bg-about2 {
    width: 105px;
    height: 100px;
    background: url('css_sprites.png') -10px -10px;
}

x .bg-about3 {
    width: 100px;
    height: 100px;
    background: url('css_sprites.png') -10px -130px;
}

x .bg-about4 {
    width: 103px;
    height: 100px;
    background: url('css_sprites.png') -135px -10px;
}

x .bg-icon {
    width: 78px;
    height: 64px;
    background: url('css_sprites.png') -258px -10px;
}

x .bg-indexadva1 {
    width: 64px;
    height: 64px;
    background: url('css_sprites.png') -258px -94px;
}

x .bg-indexadva2 {
    width: 64px;
    height: 64px;
    background: url('css_sprites.png') -10px -250px;
}

x .bg-indexadva3 {
    width: 64px;
    height: 64px;
    background: url('css_sprites.png') -94px -250px;
}

x .bg-weixi {
    width: 40px;
    height: 40px;
    background: url('css_sprites.png') -258px -178px;
}