.card_header_text {
    line-height: 2ex;
    height: 2ex; /* 2.5ex for each visible line */
    overflow: hidden;
    text-overflow: ellipsis;
    -webkit-line-clamp: 2; /* number of lines to show */
    -webkit-box-orient: vertical;
  }

.card_text {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 4; /* number of lines to show */
    -webkit-box-orient: vertical;
 }
 
 .card-img-top {
  width: 100%;
  height: 13em;
  object-fit: cover;
}