#bookcontainer {
  background-color: transparent;
  margin: 0 auto;
  overflow: hidden;
  position: relative;
  width: 100%;

  height:auto !important;

  min-height:100%;
}
#toolbarDiv {
  height: 40px;
  position: relative;
  background-color: #cacaca;
}

#footerDiv {
  height: 40px;
  position: relative;
  background-color: #cacaca;
}

#bookcontents{
  top: 0;
  bottom: 0;
  overflow: hidden;
  width: 100%;
  background-color: #cacaca;
}

#contentDiv{
 height: auto;
}

.clear {
  clear: both;
}

#pageNum{
display: inline-block;
_display: inline
}
  .iframe-iiif {
    position: relative;
    width: 100%;
  }
  .iframe-iiif iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }