<!--干掉广告-->
#ad_t2 {
    margin-top: 5px;
    line-height: 1.8;
    display: none;
}
#under_post_news,#cnblogs_c1,#cnblogs_c2,#under_post_kb,#ad_t2{
   display: none;
}
<!--按钮颜色-->
#green_channel #green_channel_follow {
    background-color: #000000;
}
#green_channel #green_channel_digg {
    background-color: #000000;
}
#green_channel #green_channel_favorite {
    background-color: #000000;
}

div.commentform textarea {
    width: 90%;
    height: 200px;
    font-size: 13px;
    border: 1px solid #020202;
    border-radius: 5px;
    font-family: 'PingFang SC','Helvetica Neue','Helvetica','Arial',sans-serif;
}