<h1 class="cp_h1title">見出しテキスト</h1>

.cp_h1title {
  position: relative;
  border-bottom: 1px solid #00838F;
  padding: 0 0 0 40px;
}
.cp_h1title::before,
.cp_h1title::after {
  position: absolute;
  content: '';
  border-radius: 50%
}
.cp_h1title::before {/*大きい丸*/
  top: 0.3em;
  left: 0.2em;
  width: 18px;
  height: 18px;
  background: rgba(0,131,143,.7);
}
.cp_h1title::after {/*小さい丸*/
  top: 0.7em;
  left: 0.5em;
  width: 13px;
  height: 13px;
  background: rgba(0,131,143,.5);
}