.sttitle {
    position: relative;
    color: #158b2b;
    font-size: 20px;
    padding: 5px 0;
    text-align: center;
    margin: 0em 0;
  }
 .sttitle:before {
    content: "";
    position: absolute;
    top: -8px;
    left: 50%;
    width: 350px;
    height: 188px;
    border-radius: 50%;
    border: 5px solid #a6ddb0;
    border-left-color: transparent;
    border-right-color: transparent;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
  }