.xthumbnail {
    position: relative;
}

.xthumbnail__zoom_icon {
    position: absolute;
    top: 5px;
    right: 20px;
    z-index: 1;
    color: #ccc;
    font-size: 30px;
}

.xthumbnail__zoom_icon:hover, .xthumbnail__zoom_icon.active {
    color: #81C6F5;
}