/*去除广告*/
div[id^="ad_"] {
    display: none;
}
div[id^="top_nav"] {/*去除博客园顶栏*/
    display: none;
}
div[class^="c_ad"] {
    display: none;
}
#under_post_kb{/*最新新闻*/
  display: none;
  overflow: hidden;
}