#ad_t2 ,#ad_c1,#HistoryToday,#under_post_news,#ad_c2,#under_post_kb,.postSeparator,.dayTitle{
display:none;
}

.comment_btn{
  width: 100px;
    height: 35px;
    background: none;
    border: none;
    background-color: #545454;
    cursor: pointer;
    color: white;
   margin: 20px auto;
    display: inherit;

}
#home{
width: 77%;
}
#mainContent{
  width: 900px;
}
.CalDayHeader {
    background: url(https://img2018.cnblogs.com/blog/1236245/201908/1236245-20190831161742818-689290357.gif) 50% 0 no-repeat;
    padding-bottom: 5px;
}