/* Main Layout */
  html {
    overflow-y:scroll;
  }

  body{
    width: 50%;
    height: 100%;
    margin: auto;
    font-family: helvetica, sans-serif;
    background-color: black;
    background-image: url("https://resources.finalsite.net/images/f_auto,q_auto/v1564591991/lakeside/ixp2nbbeomf4llkpfukd/discovery_0140_dropdown.jpg");
    background-attachment: fixed;
    background-size: auto 100%;
  }

  div#body{
    position: absolute;
    top: 0px;
    left: 25%;
    right: 25%;
    min-height: 100%;
    padding-left: 0px;
    padding-right: 0px;
    background-color: white;
    margin: auto;
  }

  div#spacer{
    height: 200px
  }

  div#source{
    position: absolute;
    left: 30px;
    right: 30px;
    bottom: 30px;
  }

  h1{
    margin: 30px;
  }

/* Navigation Bar */
  div#nav-bar{
    width: 100%;
  }

  #nav-bar ul{
    display:flex;
    width: 100%;
    list-style-type: none;
    padding: 0;
  }

  #nav-bar li{
    display: inline-block;
    width: 33.33%;
    padding: 10px;
    text-align: center;
    background-color: #800000;
    color: yellow;
    font-size: 20px;
  }

  #nav-bar li.selected{
    background-color: #500000;
  }

  #nav-bar li.unselected{
    background-color: #800000;
  }

  #nav-bar li:hover{
    background-color: #700000;
  }

  #nav-bar li.selected:hover{
    background-color: #400000;
  }

/* Tabs */
  div.page{
      margin: 30px;
      display: none;
    }

  div.selected{
    display: block;
  }

/* Other */
  iframe{
    width: 100%;
    border: 0;
  }

  img{
    object-fit: cover;
    width: 100%;
    height: 100%;
  }

  table{
    table-layout: fixed;
    width: 100%;
    height: 100%;
  }