html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: #3aa34a;
}

#wrapper {
  width: 100%;
  height: 100%;
  overflow: hidden;
  cursor: grab;
}

#camera {
  position: absolute;
  transform-origin: top left;
}

canvas {
  position: absolute;
  top: 0;
  left: 0;
}

/* UI */
#ui {
  position: absolute;
  top: 10px;
  left: 10px;
  color: white;
}

#openForm {
  position: absolute;
  top: 10px;
  right: 10px;
}

#helpBtn {
  position: absolute;
  bottom: 10px;
  left: 10px;
}


#formPopup {
  position: absolute;
  top: 50px;
  right: 10px;
  background: white;
  padding: 10px;
  border: 2px solid black;
  width: 200px;
}

#historyPanel {
  position: absolute;
  top: 200px;
  right: 10px;
  width: 220px;
  height: 250px;
  overflow-y: auto;
  background: white;
  border: 2px solid black;
  font-size: 11px;
}

#helpPanel {
  position: absolute;
  bottom: 50px;
  left: 10px;
  background: white;
  padding: 8px;
  border: 2px solid black;
  max-width: 180px;
}

.hidden { display: none; }