ul.thumbnails.image_picker_selector {
    overflow: auto;
    list-style-image: none;
    list-style-position: outside;
    list-style-type: none;
    padding: 0;
    margin: 0;
}

ul.thumbnails.image_picker_selector ul {
    overflow: auto;
    list-style-image: none;
    list-style-position: outside;
    list-style-type: none;
    padding: 0;
    margin: 0;
}

ul.thumbnails.image_picker_selector li.group_title {
    float: none;
}

ul.thumbnails.image_picker_selector li {
    margin: 0 12px 12px 0;
    float: left;
}

ul.thumbnails.image_picker_selector li .thumbnail {
    padding: 6px;
    border: 1px solid #dddddd;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

ul.thumbnails.image_picker_selector li .thumbnail img {
    -webkit-user-drag: none;
}

ul.thumbnails.image_picker_selector li .thumbnail.selected {
    background: #0088cc;
}