.kedao-hr {
  position: relative;
  box-sizing: content-box;
  height: 15px;
  padding-top: 15px;
  text-align: center;
}
.kedao-hr::before {
  display: block;
  height: 1px;
  background-color: rgba(0, 0, 0, 0.1);
  content: "";
}
.kedao-hr:hover::before {
  background-color: rgba(0, 0, 0, 0.3);
}
.kedao-hr:hover .hr-toolbar {
  display: block;
}
.kedao-hr .hr-toolbar {
  display: none;
}