/***
  Styles below are only required if you're using <iframe> fallback in
  addition to HTML5 drag & drop (only working in Firefox/Chrome/Opera 15+).
 ***/

/* Essential FileDrop zone element configuration: */
.fd-zone {
    position: relative;
    overflow: hidden;
    /* The following are not required but create a pretty box: */
    width: 15em;
    margin: 0 auto;
    text-align: center;
}

/* Hides <input type="file"> while simulating "Browse" button: */
.fd-file {
    opacity: 0;
    font-size: 118px;
    position: absolute;
    right: 0;
    top: 0;
    z-index: 1;
    padding: 0;
    margin: 0;
    cursor: pointer;
    filter: alpha(opacity=0);
    font-family: sans-serif;
}

/* Provides visible feedback when user drags a file over the drop zone: */
.fd-zone.over { border-color: maroon; background: #eee; }