#blogTitle {

}

#site_nav_under {
    display: none;
}
.c_ad_block, .ad_text_commentbox {
    display: none;
    margin: 0;
    padding: 0;
}
#ad_under_google {
    height: 0;
    overflow: hidden;
}
#ad_under_google a {
    display: none;
}

#back-to-top {
  background-color: #00CD00;
  bottom: 0;
  box-shadow: 0 0 6px #00CD00;
  color: #444444;
  padding: 10px 10px;
  position: fixed;
  right: 50px;
  cursor: pointer;
}

#github a:hover{color:#F00}
#github a:link{color:#F00}
#github a:active{color: #F00;}
<!--手机兼容-->