.single__mai--insight > h4 {
  background: rgba(0, 0, 0, 0.1);
  padding: 0.5rem 1rem;
  margin: 0;
}

.border-hedding,
.single__mai--insight > h3 {
  border-bottom: solid 2px rgba(0, 0, 0, 0.1);
  position: relative;
  padding-bottom: 0.75rem;
}

.border-hedding:after,
.single__mai--insight > h3::after {
  position: absolute;
  content: " ";
  display: block;
  border-bottom: solid 2px #000;
  bottom: -2px;
  width: 30%;
}
.single__mai--insight ol li:last-child{
  margin-bottom: 0;
}