#popup {
  z-index: 2;
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  text-align: center;
  
  display: none;
}

#guiHand {
  z-index: 5;
  position: fixed;
  pointer-events: none;
}

.guiDialog {
  /*position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);*/
  display: inline-block;
  position: relative;
  /*margin: auto;*/
  top: 50%;
  transform: perspective(1px) translateY(-50%);
  text-align: left;
  
  background-color: #c6c6c6;
  color: white;
  padding: 20px;
  border-radius: 5px;
}

.guiBlockGridContainer {
  display: block;
  font-size: 0;
}

.guiBlockCell {
  display: inline-block;
  margin: 5px;
  border: 2px solid #333;
  
  background-color: rgba(0, 0, 0, 0.3);
}

.guiPixelArt {
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
}