K2 BFC W 80 20/21

.des-m { display: none; height: 0; opacity: 0; transition: 0.4s all ease; }
.des-m:nth-child(1),
.read-open .des-m { display: block; height: auto; opacity: 1; }
.des-read-more { text-decoration: underline; cursor: pointer; }
.read-open .des-read-more { display: none; }