@media (min-width: 721px) {
  .main-detail-ad1 {
    margin: 30px;
  }
  .main-detail-ad1 .lead {
    margin-left: 20px;
    color: #111;
  }
  .main-detail-ad1 .content {
    background: #fdf5e6;
    padding: 1em;
  }
  .main-detail-ad1 .content .content-link span {
    font-weight:600;
    color:#0000ff;
    text-decoration: underline;
  }
  .main-detail-ad1 .content .content-link span::before {
    content: "";
    display: inline-block;
    width: 16px;
    height: 16px;
    background-image: url("/img/article/pointing.png");
    background-size: contain;
    background-repeat: no-repeat;
    margin-right: 6px;
    vertical-align: middle;
  }
}

@media (max-width: 720px) {
  .main-detail-ad1 {
    margin: 15px;
  }
  .main-detail-ad1 .lead {
    margin-left: 20px;
    color: #111;
  }
  .main-detail-ad1 .content {
    background: #fdf5e6;
    padding: 1em;
  }
  .main-detail-ad1 .content .content-link span {
    font-weight:600;
    color:#0000ff;
    text-decoration: underline;
  }
  .main-detail-ad1 .content .content-link span::before {
    content: "";
    display: inline-block;
    width: 16px;
    height: 16px;
    background-image: url("/img/article/pointing.png");
    background-size: contain;
    background-repeat: no-repeat;
    margin-right: 6px;
    vertical-align: middle;
  }
}