article {
    max-height:6rem;
    overflow:hidden;
    text-overflow: ellipsis;
    content: "";
    position:relative;
}

article[aria-expanded="false"]:before {
    content:'';
    width:100%;
    height:6rem;
    position:absolute;
    left:0;
    top:0;
    background:linear-gradient(transparent 3rem, white);
}