.mb-0 { margin-bottom: 0 !important; }
.card {position: relative; display: block; margin-bottom: 0.75rem; background-color: #fff; border-radius: 0.25rem; border: 1px solid #f00;}
  .card .card-header {text-align: center}
  .card .card-block {font-size: 90%; text-align: justify}
.news-block {border-color: #f00; margin-top: 10px}