/*video embed*/
.flex-video {
    position: relative;
    padding-top: 25px;
    padding-bottom: 67.5%;
    height: 0;
    margin-bottom: 16px;
    overflow: hidden;
           }

.flex-video.widescreen { padding-bottom: 57.25%; }
.flex-video.vimeo { padding-top: 0; }

.flex-video iframe,
.flex-video object,
.flex-video embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/*footnotes*/

.tooltip-container {
  position: relative;
  display: inline-block;
}

.tooltip-link {
  text-decoration: underline;
  color: blue;
  cursor: pointer;
}

.tooltip-box {
  position: absolute;
  bottom: 125%; /* above the link */
  left: 50%;
  transform: translateX(-50%);
  background-color: black;
  color: white;
  padding: 5px 8px;
  border-radius: 4px;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: 10;
}

.tooltip-container:hover .tooltip-box {
  visibility: visible;
  opacity: 1;
}




/*footnote 1*/

a.tooltips {
  position: relative;
  display: inline;
}
a.tooltips span {
  position: absolute;
  width:280px;
  color: #000000;
    font-size: 14px;
  background: #C4C4C4;
  height: 30px;
  line-height: 30px;
  text-align: center;
  visibility: hidden;
  border-radius: 6px;
  box-shadow: 3px 3px 2px #696969;
}
a.tooltips span:after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -75px;
  width: 0; height: 0;
  border-top: 8px solid #C4C4C4;
  border-right: 8px solid transparent;
  border-left: 8px solid transparent;
}
a:hover.tooltips span {
  visibility: visible;
  opacity: 1;
  bottom: 30px;
  left: 50%;
  margin-left: -76px;
  z-index: 999;
}

/*footnote 2 --giant Glasersfeld chunk*/

a.tooltips2 {
  position: relative;
  display: inline;
}
a.tooltips2 span {
  position: absolute;
  width:500px;
  color: #000000;
    font-size: 14px;
  background: #C4C4C4;
  height: 76px;
  line-height: 15px;
  text-align: center;
  visibility: hidden;
  border-radius: 6px;
    padding-top: 5px;
  box-shadow: 3px 3px 2px #696969;
}
a.tooltips2 span:after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -100px;
  width: 0; height: 0;
  border-top: 8px solid #C4C4C4;
  border-right: 8px solid transparent;
  border-left: 8px solid transparent;
}
a:hover.tooltips2 span {
  visibility: visible;
  opacity: 1;
  bottom: 30px;
  left: 50%;
  margin-left: -160px;
  z-index: 999;
}

/*footnote 1 in chapter 2 - note on chart*/

a.tooltips3 {
  position: relative;
  display: inline;
}
a.tooltips3 span {
    position: absolute;
    width:385px;
    color: #000000;
    font-size: 14px;
    background: #C4C4C4;
    height: 30px;
    line-height: 30px;
    text-align: center;
    visibility: hidden;
    border-radius: 6px;
    box-shadow: 3px 3px 2px #696969;
}
a.tooltips3 span:after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -100px;
  width: 0; height: 0;
  border-top: 8px solid #C4C4C4;
  border-right: 8px solid transparent;
  border-left: 8px solid transparent;
}
a:hover.tooltips3 span {
  visibility: visible;
  opacity: 1;
  bottom: 30px;
  left: 50%;
  margin-left: -100px;
  z-index: 999;
}

/*Body formatting*/
.section {
  font-family: 'PT Serif', Serif;
}
.content {
    line-height: 2;
    font-size: 16px;
    margin-top: 16px;
    margin-bottom: 12px;
}
.content p {
  margin-top: 0em;
  margin-bottom: 1.5em;
}

.heading {
  font-family: 'PT Serif', Serif;
}
  

.blockquote {
    font-size: 12px; 
    font-family: ;
    margin-bottom: 0px;
}

.hr {
    height: 5px;
    border: none;
    background-color: #C0C0C0;
}

.end_matter {
    padding-bottom: 40px;
    font-family: 'PT Serif', Serif;
}

/*SIDE MENU*/

.dropdown {
    background:#fff;
    border:1px solid #ccc;
    border-radius:4px;
}

.sidenav {
  display: inline;
  position: fixed;
}
.col-md-2 {
  display: inline;
  position: relative;
  }