excalidraw/src/components/HintViewer.css

.HintViewer {
  background-color: rgba(255, 255, 255, 0.88);
  color: #868e96; /* OC: GRAY 6*/
  font-size: 0.8rem;
  left: 50%;
  pointer-events: none;
  position: absolute;
  top: 54px;
  transform: translateX(calc(-50% - 16px)); /* 16px is half of lock icon */
}

@media (max-width: 600px), (max-height: 500px) and (max-width: 1000px) {
  .HintViewer {
    position: static;
    margin-top: 0.5rem;
    text-align: center;
  }
}