#imgPreviewContainer {
    background: #222 url(/prx/000/https/j11y.io/demos/imgPreview/img/loading.gif) no-repeat center;
    -moz-border-radius: 10px;
    -webkit-border-radius: 10px;
    padding: 15px;
    display: none;
    position: absolute;
    z-index: 999;
    border: none;
}
#imgPreviewContainer span {
    color: white;
    font-size: 0.7em;
    text-align: center;
    display: block;
    padding: 10px 0 3px 0;
}

#imgPreviewContainer.loading {
    height: 32px;
    width: 32px;
}