body { 
  margin: 0;
}

#canvas {
  position: fixed;
}

.dg.ac {
  z-index: 1 !important;
}

#changeView {
  position: fixed;
  bottom: 10px;
  left: 10px;
  color: #ffffff;
  background: #000000;
  padding: 8px 16px;
  border: 1px solid #ffffff;
  z-index: 1;
}