.center {
    text-align: center;
}

.showcase:hover {
    text-decoration: none;
}

.thumb {
    border: 4px solid #fff;
    border-radius: 50%;
    width: 120px;
    height: 120px;
    position: relative;
    text-align: center;
    display: block;
    margin: 20px auto 10px;
}