hr {
  border: 0;
  border-top: 1px dashed #8c8c8c;
  text-align:center;
}
hr:after {
  content: '\002702';
  display: inline-block;
  position: relative;
  top: -13px;
  padding: 0 3px;
  background: #fff;
  color: #8c8c8c;
  font-size: 18px;
}