#hdemo {
  padding: 0.3em;
}

.cDefaultCursor {
  cursor: default;
}

#hreactionbox {
  border: 1px solid black;
  padding: 0.2em;
}

.cflag {
  visibility: hidden;
}

:hover > .cflag {
  visibility: visible;
}

#hfeedback {
  display: none;
}
#hfeedback.cvisible {
  display: block;
}

#hhelp {
  display: none;
}
#hhelp.cvisible {
  display: block;
}