.content__contact .entry__body .attachment_preview div {
    width: 120px;
    max-height: 220px;
    margin: 30px 10px 10px 0;
    padding: 5px;
    border: 1px solid #999999;
    background: #f0f0f0;
    float: left;
    position: relative;
}

.content__contact .entry__body .attachment_preview img {
    height: auto;
    max-width: 100%;
    margin-bottom: 0;
}

.thumbnail:hover::after {
    position: absolute;
    left: -8px;
    top: -9px;
    content: "\2716";
    line-height: 100%;
    margin: 0;
    background-color: #ffffff;
}