.hidden {
    display: none;
}

.tab-container {
    width: 100%;
    display: table;
}

.index {
    width: 200px;
    display: table-cell;
    background-color: rgba(253, 175, 23, 0.4);
    height: 100%;
    padding: 0 8px;
}

.tabBlock-pane,
.index h5 {
    text-align: center;
}

.tabBlock-pane h5 {
    margin: 0px;
}

.index a,
.index a:visited {
    display: flex;
    text-decoration: none;
    color: black;
    font-size: 10pt;
    margin-bottom: 8px;
}

.selected-chapter {
    font-weight: bold;
}

.index a:hover {
    text-decoration: underline;
}

.tabs {
    display: table-cell;
}

.group::after,
.tabBlock-tabs::after {
    clear: both;
    content: "";
    display: table;
}

.tabBlock *,
::before,
::after {
    box-sizing: border-box;
}

tabBlock.p,
tabBlock.ul {
    margin-bottom: 1.25rem;
    margin-top: 0;
}

tabBlock.ul {
    padding: 0;
    margin-left: 1.25rem;
}

.tabBlock-tabs {
    list-style: none;
    margin: 0;
    padding: 0;
}

.tabBlock {
    margin: 0 0 2.5rem;
}

.tabBlock-tab {
    background-color: #fff;
    border-color: rgba(253, 175, 23, .6);
    ;
    border-left-style: solid;
    border-top: solid;
    border-width: 1px;
    color: #888;
    cursor: pointer;
    display: inline-block;
    font-weight: 600;
    float: left;
    padding: 10px;
    position: relative;
    -webkit-transition: 0.1s ease-in-out;
    transition: 0.1s ease-in-out;
}

.tabBlock-tab:hover{
    color: black;
}

.tabBlock-tab:last-of-type {
    border-right-style: solid;
}

.tabBlock-tab::before,
.tabBlock-tab::after {
    content: "";
    display: block;
    height: 4px;
    position: absolute;
    -webkit-transition: 0.1s ease-in-out;
    transition: 0.1s ease-in-out;
}

.tabBlock-tab::before {
    background-color: rgba(253, 175, 23, .1);
    left: -2px;
    right: -2px;
    top: -2px;
}

.tabBlock-tab::after {
    background-color: transparent;
    bottom: -2px;
    left: 0;
    right: 0;
}

@media screen and (min-width: 700px) {
    .tabBlock-tab {
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }
}

.tabBlock-tab.is-active {
    position: relative;
    color: black;
    border-bottom: transparent;
    z-index: 1;
}

.tabBlock-tab.is-active::before {
    background-color: rgba(253, 175, 23, 1.0);
}

.tabBlock-tab.is-active::after {
    background-color: #fff;
}

.tabBlock-content {
    background-color: #fff;
    border-top: 1px solid rgba(253, 175, 23, 1.0);
    padding: 1.25rem;
}

.tabBlock-pane {
    position: relative;
}

.tabBlock-pane> :last-child {
    margin-bottom: 0px;
    margin-top: 30px;
}

.notes-tab {
    text-align: left;
}

.chap-title {
    font-size: 14pt !important;
}

.author-img {
    width: 75px;
    position: absolute;
    left: 0;
    margin-top: -10px;
}

.geowise-img {
    width: 125px;
    position: absolute;
    left: 0;
    margin-top: -10px;
}

.geo-tab
{
    margin-top: -10px !important;
}

.instructions
{
    width:520px;
    font-size: 9pt;
    text-align: center;
    margin: 0 auto;
}

.bas-slide-img {
    vertical-align: middle;
  }
  
  /* Position the image container (needed to position the left and right arrows) */
  .bas-slide-container {
    position: relative;
    padding: 0 16px 16px 16px;
  }
  
  /* Hide the images by default */
  .bas-slide {
    display: none;
    position: relative;
  }
  
  /* Next & previous buttons */
  .bas-prev,
  .bas-next {
    cursor: pointer;
    position: absolute;
    display: inline-block;
    opacity: 0;
    top: 40%;
    /* width: 80px; */
    /* height: 80px; */
    /* background: rgba(0, 0, 0, .55); */
    /* border-radius: 50%; */
    color: white;
    font-size: 50px;
    user-select: none;
    -webkit-user-select: none;
    text-decoration: none;
    text-shadow: 0 0 8px #000;
}
  
a.bas-next:hover,
a.bas-prev:hover
{
    color: white !important;
}

  /* Position the "next button" to the right */
  .bas-next {
    right: 0;
  }
  
  /* Position the "prev button" to the left */
  .bas-prev {
    left: 0;
  }
  
  /* Number text (1/3 etc) */
  .bas-numbertext {
    color: #f2f2f2;
    font-size: 12px;
    padding: 8px 12px;
    position: absolute;
    top: 0;
  }
  
  .bas-slide-caption
  {
      background: black;
      color: white;
      font-size: 11pt;
      text-align: left;
      padding: 4px 8px 8px 8px;
  }

  .next-hot-zone,
  .prev-hot-zone
  {
      position: absolute;
      width: 75px;
      height: 100%;
      background-color: transparent;
      z-index: 1000;
  }

  .prev-hot-zone
  {
      left: 0;
  }
  
  .next-hot-zone
  {
      right: 0;
  }

  .bas-slide-video
  {
      width: 800px;
      height: 600px;
  }

  .bas-iframe
  {
      width: 800px;
      height: 600px;
  }