body{
  font-family:Verdana, Geneva, Tahoma, sans-serif;
}
table{
  border-collapse: collapse;
}
td,rt,th{
  border: solid thin black;
  padding: 5px 5px;
}

th{
  background-color: lightblue;
}

h3{
  font-weight: bold;
}
.hide{
  display: none;
}

span{
  padding:0 3px;
  background-color: lightskyblue;
  margin-top: 5px;
  margin-right: 3px;
}

span:hover,.selected {
  font-weight: bold;
  background-color: blue;
  color:white;
}