.code-block {
  position: relative;
}

.copy-button {
  position: absolute;
  top: 8px;
  right: 8px;
  background: #f0f0f0;
  border: none;
  padding: 5px 10px;
  font-size: 1.2rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  opacity: 0;
  pointer-events: none;
  z-index: 10;
}

.copy-button:hover {
  background-color: #4236ff; 
  color: #fff;
}

.copy-button:active {
  background-color: #bbb;
}

.code-block:hover .copy-button {
  opacity: 1;
  pointer-events: auto;
}