.post-directory {
    font-size: 14px;
    background: #fff;
    box-shadow: 0 2px 10px 2px rgba(0, 0, 0, 0.2);
    width: 262px;
}

.post-directory dt, dd{
    border-left: 5px solid #666;
    cursor: pointer;
    padding: 2px 5px 2px 15px;
}

.post-directory a{
    text-decoration: none;
    display: inline-block;
    width: 100%;
}

.post-directory dt:hover, dd:hover {
    background: #666;
    border-left: 5px solid #111;
}

.post-directory dt:hover a, dd:hover a {
    font-weight: bold;
    color: #fff;
}

.col-md-3 {
    position: static; /* fix strange behavior */
}