/*添加按钮*/
.cnblogs-markdown pre {
  position: relative;
}
.cnblogs-markdown pre > span {
  position: absolute;
  top: 0;
  right: 0;
  border-radius: 2px;
  padding: 0 10px;
  font-size: 12px;
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
  cursor: pointer;
  /*注释下面这一行，button一直显示*/
  display:none;
}
.cnblogs-markdown pre:hover > span {
  display:block;
}
.cnblogs-markdown pre > .copyed {
  background: #67c23a;
}
/*快速评论*/
#div_digg {
  position: fixed;
  bottom: 10px;
  right: 15px;
  border: 2px solid #ECD7B1;
  padding: 10px;
  width: 140px;
  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);
}
.cnblogs-markdown pre {
  position: relative;
}
.cnblogs-markdown pre > span {
  position: absolute;
  top: 0;
  right: 0;
  border-radius: 3px;
  padding:0 10px;
  font-size: 12px;
  background: #fff;
  color: #000;
  cursor: pointer;
  display:none;
  margin:8px 10px;
  transition: background .5s;
  -moz-transition: background .5s;
  -webkit-transition: background .5s;
  -o-transition: background .5s;
}
.cnblogs-markdown pre > span:hover {
  background: #ddd
}
.cnblogs-markdown pre:hover > span {
  display:block;
}