.code-wrap {
  position: relative;
}

.copy-button {
  position: absolute;
  top: 10px;
  right: 10px;
  opacity: 0;
  transition: opacity 120ms ease;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.12);
  color: white;
  border-radius: 8px;
  padding: 6px 8px;
  font-size: 0.78rem;
  cursor: pointer;
}

.code-wrap:hover .copy-button,
.copy-button:focus {
  opacity: 1;
}