.highlight {
  position: relative;
}

.copy-code-button {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background-color: rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 6px;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  color: #57606a;
  transition: background-color 0.2s, color 0.2s;
  user-select: none;
}

.copy-code-button:hover {
  background-color: rgba(0, 0, 0, 0.1);
  color: #24292f;
}

.copy-code-button:active {
  background-color: rgba(0, 0, 0, 0.15);
}

@media (prefers-color-scheme: dark) {
  .copy-code-button {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.1);
    color: #c9d1d9;
  }

  .copy-code-button:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: #ffffff;
  }

  .copy-code-button:active {
    background-color: rgba(255, 255, 255, 0.25);
  }
}