pre{position:relative}.copy-code-button{position:absolute;top:.5rem;right:.5rem;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#ccc;border-radius:4px;padding:.25rem .5rem;font-size:.75rem;cursor:pointer;opacity:0;transition:opacity .2s,background .2s}pre:hover .copy-code-button{opacity:1}.copy-code-button:hover{background:rgba(255,255,255,.2);color:#fff}.copy-code-button.copied{background:#4caf50;color:#fff;border-color:#4caf50}