#nav-arrows {
  position: fixed;
  right: 20px;
  bottom: 30px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
}
#nav-arrows .btn {
  background-color: transparent;
  border: 2px solid transparent;
  width: 60px;
  height: 60px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 4px 0;
  border-radius: 8px;
}
#nav-arrows .btn i {
  font-size: 2.5em;
  color: #1e90ff;
}
#nav-arrows select#anchorSelect {
  background-color: transparent;
  color: #080808ff;
  border: none;
  border-radius: 8px;
  font-size: 0.75em;
  height: 60px;
  width: 60px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  margin: 4px 0;
  padding-left: 0.3em;
  font-weight: bold;
  appearance: none;
  white-space: normal;
  word-break: break-all;
}
#nav-arrows select#anchorSelect:focus {
  outline: 2px solid  #1e90ff;
}