h2 {
    position: relative;
    padding: 1rem 2rem calc(1rem + 10px);
    background: #dfdfdf;
    /* font-size:12px; */
  }
  
  h2:before {
    position: absolute;
    top: -7px;
    left: -7px;
    width: 100%;
    height: 100%;
    content: '';
    border: 4px solid #000;
  }


.main-content-margin{
    margin-top:50px;
}