.column {
    float: right;
    width: 17.5%;
    margin: 5px;
    border-style: ridge;
    border-width: 2px;
    overflow:hidden;
}

/* Clear floats after the columns */
.row:after {
    content: "";
    display: table;
    clear: both;
}

.column a {
    text-decoration: none;
    color: whitesmoke;
}

.column h3 {
    border-bottom-style: ridge;
    border-bottom-width: 5px; ;
    text-align: center;
    padding-bottom: 10px;
    padding-top: 10px;
    padding-left: 5px;
    padding-right: 5px;
    background-color: #4a148c;
    margin-bottom: 0px!important;
    margin-top: 0px!important;
}

.column div {

    padding:10px;
    background-color: mistyrose;
    overflow: auto;
}

.link div {
    height: 200px;
}

.reference div {
    height: 50px;
}

.column {

}