.group-page {
  position: relative;
}
/* Heading underline*/
.group-page::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 25%; /* 1/4 of the element's width */
  height: 3px; /* Thickness of the border */
  background-color: #ff8000!important; /* Color of the border */
}