ul.hintr {
  background-color: white;
  border: 1px solid #ccc;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  display: none;
  font-family: inherit;
  font-size: inherit;
  list-style: none;
  margin: 0;
  max-height: 150px;
  overflow-y: auto;
  padding: .25rem 0;
  position: fixed;
  width: 100%;
  z-index: 1;
}
ul.hintr.show {
  display: block;
}
ul.hintr:empty {
  display: none;
}
ul.hintr li a {
  color: inherit;
  display: block;
  padding: 0.25rem .5rem;
  text-decoration: none;
}