picture_wysiwyg.css in Picture 7.2

/* This CSS file needs to be included either in the theme used for
 * editing content in order to be included in the WYSIWYG edit iframe,
 * or specifically included in the WYSIWYG config page's
 * "Define CSS" textfield.
 */
span[data-picture-align="left"],
img[data-picture-align="left"] {
  float: left;
}
span[data-picture-align="right"],
img[data-picture-align="right"] {
  float: right;
}
span[data-picture-align="center"],
img[data-picture-align="center"] {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

/* Remove ugly boarders that bunch up in the image dialog table. */
.cke_dialog_body tr td:last-child {
  border-right: 0px;
}

/* The following is an example of what you could put in your theme
 * to control the size of images. It is formatted as
 * span[data-picture-mapping="[The machine name of your picture mapping]"
  span[data-picture-mapping="wide"] {
    width: 100%;
  }
  span[data-picture-mapping="normal"] {
    width: 50%;
  }
  span[data-picture-mapping="narrow"] {
    width: 33%;
  }
  span[data-picture-mapping] img {
    width: 100%;
    height: auto;
  }
*/