@charset "UTF-8";

<style>
  .gr-12 {
    display:block;
    width:80%;
    height:auto;
    box-sizing:border-box;
    padding:20px;
    margin:10px auto 12px;
    background-color:#f1f1f1;
    color:#666;
    font-size:1.7rem;
  }  
}

.gr-12 h3 {
  font-size:2rem;
  color:#777;
}