h1.page-title {
  text-align: center;
  margin: 6rem auto 3em;
  position: relative;
}

h1.page-title::after {
  content: "";
  display: inline-block;
  width: 1em;
  height: 6px;
  border-radius: 3px;
  background: #2FAC72;
  position: absolute;
  top: calc(100% + 0.5em);
  left: 50%;
  transform: translateX(-50%);
}