.tooltip {
  position: relative;
  display: inline-block;
  border-bottom: 1px dotted #999;
}

.tooltip .tooltiptext {
  visibility: hidden;
  width: max-content;
  background-color: black;
  color: #fff;
  text-align: left;
  border-radius: 6px;
  padding: 5px 5px;
  bottom: 100%;
  left: 50%;
  margin-left: -60px; 

  /* Position the tooltip */
  position: absolute;
  z-index: 1;
}

.tooltip:hover .tooltiptext {
  visibility: visible;
}

span {
    border-bottom:1px dotted #000;
}
.highlight {
    background: #fe7;
    color: black;
}

h1 {
  text-align: center;
  font-family: arial;
}

body {
  background-image: linear-gradient(to right, #cde, #edc);
}

table {
  margin-left:auto; 
  margin-right:auto;
  background-color: #eee;
  border: solid black 3px;
  padding: 0px;
  border-collapse: separate;
  border-radius: 10px;
  border-spacing: 0;
  box-shadow: 10px 10px 8px #888888;
}

th {
  background-color: #000;
  color: #ace;
  font-family: arial;
  font-size: 18px;
}

th.bottom {
  background-color: #fff;
  color: #ace;
  font-family: arial;
  font-size: 18px;
}

td {
  padding-left: 5px;
  padding-right: 5px;
}

td.textid {
  background-color: #000;
  color: #eef;
}

tr.concordance_correct {
  background-color: #d8ffd8;
}

tr.concordance_incorrect {
  background-color: #ffd8d8;
}