/*快速评论 悬浮显示*/
#div_digg {
  position: fixed;
  bottom: 10px;
  right: 25px;
  border: 2px solid #ECD7B1;
  padding: 10px;
  width: 130px;
  background-color: #fff;
  border-radius: 5px 5px 5px 5px !important;
  box-shadow: 0 0 0 1px #5F5A4B, 1px 1px 6px 1px rgba(10, 10, 0, 0.5);
}
#back-to-top {
    background-color: #fff;
    bottom: 0;
    box-shadow: 0 0 6px #00CD00;
    color: #444444;
    padding: 10px 10px;
    position: fixed;
    right: 250px;
    cursor: pointer;
}