.dropdown {
    position: relative;
    display: inline-block;
    vertical-align: top;
    width: 300px;
    height: 200px;
    background: darkred;
    border-style: solid;
    border-color: black;
    border-radius: 25px;
    padding: 30px;
    margin: 10px;
    text-align: center;
    font-size: 1.1em;
    color: white;
}

.dropdown-content {
    position: absolute;
    top: 0px;
    left: 0px;
    background: black;
    background: linear-gradient(black, #2b2b2b);
    width: 297px;
    height: 0%;
    border-style: solid;
    border-color: black;
    border-radius: 25px;
    padding: 30px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
    text-align: justify;
    font-size: 0.8em;
    opacity: 0.0;
    transition: height 0.2s, opacity 0.2s;
}

.dropdown:hover .dropdown-content {
    display: block;
    opacity: 1.0;
    height: 60%;
}