.share-platform .bds_weixin{
    background-image: url('img/css-bg.png');
    background-position: -13px -8px !important;
}
.share-platform .bds_tsina{
    background-image: url('img/css-bg.png');
    background-position: -57px -8px !important;
}
.share-platform .bds_sqq{
    background-image: url('img/css-bg.png');
    background-position: -101px -8px !important;
}
.share-platform .bds_qzone{
    background-image: url('img/css-bg.png');
    background-position: -146px -8px !important;
}