source/uncertainty-calibration/footnote.css

.tooltip-footnote {
  top: -1000px;
  position: absolute;
  padding: 10px;
  background: rgba(255, 255, 255, .8);
  border: 0px solid lightgray;
  
  width: 300px !important;
  font-size: 14px;
  line-height: 1.4em;
  background: rgba(0, 0, 0, .8);
  color: #fff;
  pointer-events: all !important;
}
.tooltip-footnote a{
  color: #fff !important;
}
.tooltip-footnote:hover{
/*  opacity: 1;
  pointer-events: all !important;
*/}

.tooltip-footnote-hidden{
  opacity: 0;
  transition: opacity .3s;
  transition-delay: .2s;
  pointer-events: none !important;
}

@media (max-width: 590px){
  .footend{
    margin-left: 0px;
    width: 10px;
  }

  div.tooltip-footnote{
    transition: all 0s !important;
    transition-delay: 0s !important;

    display: none;
    position: fixed;
    bottom: -1px;
    width: calc(100%);
    left: -1px !important;
    right: -1px !important;
    top: auto !important;
    width: auto !important;
  }
}

.footstart{
  padding-left: 2px;
  height: 8px !important;
  /*background: red;*/
  /*display: inline-block;*/
  line-height: 0em;
}