.description{
    height: 200px;
    overflow: hidden;
}
.open {
  height: 50%;
}

div#ID {
    width: 100%;
    position: relative;
}
 div.cold:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-shadow: inset 0 -140px 60px -80px rgba(255, 255, 255, 0.94);
}