html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: #000;
  color: #ccc;
  font: 14px/1.45 "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
}

body { display: flex; }

#nota {
  flex: 0 0 200px;
  margin: 0;
  padding: 14px 16px;
  overflow-y: auto;
}

#nota p { margin: 0 0 1em; }

#area {
  flex: 1;
  position: relative;
  min-width: 0;
  min-height: 0;
}

#v {
  position: absolute;
  inset: 0;
}

#v .openseadragon-canvas:focus { outline: none; }

#estado,
#marcacao {
  position: absolute;
  top: 8px;
  left: 10px;
  margin: 0;
  font-variant-numeric: tabular-nums;
  z-index: 1;
}

#marcacao button {
  font: inherit;
  margin-top: 4px;
}

/* escala de ampliação: régua vertical, em escala logarítmica */

#escala {
  position: absolute;
  right: 16px;
  top: 20%;
  bottom: 20%;
  width: 1px;
  background: #888;
  font-variant-numeric: tabular-nums;
  z-index: 1;
}

#escala .marca {
  position: absolute;
  right: 0;
  transform: translateY(50%);
  display: flex;
  align-items: center;
  white-space: nowrap;
  font-size: 12px;
  color: #999;
}

#escala .marca::after {
  content: "";
  width: 7px;
  border-top: 1px solid #888;
  margin-left: 5px;
}

#escala button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 2px 0;
  cursor: pointer;
}

#escala button:hover { color: #fff; }

#escala .perto button { visibility: hidden; }

#escala .atual {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}

#escala .atual::after {
  width: 15px;
  border-top-color: #fff;
}

@media (max-width: 600px) {
  body { flex-direction: column; }

  #nota {
    flex: none;
    padding: 10px 12px;
    font-size: 13px;
  }

  #escala { right: 10px; }
}