<h1 class="cp_h1title">見出しテキスト</h1>

.cp_h1title {
  position: relative;
  color: #ffffff;
  background: #F06292;
  border-radius: 1em;
  padding: 0 10px;
  margin-left: 60px;
}
.cp_h1title:before,
.cp_h1title:after {
  position: absolute;
  content: '●';
  color: #F06292;
}
.cp_h1title:before{/*小さい●*/
  font-size: 50%;
  left: -60px;
  bottom: -10px;
}
.cp_h1title:after{/*大きい●*/
  font-size: 90%;
  left: -35px;
  bottom: -5px;
}