h1{font-size:3.2em;line-height:1.1}button{color:#fff;border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}#editorPanel{display:block}#editor{width:100%;height:300px;border:1px solid #ccc;padding:10px;font-family:monospace;font-size:14px;line-height:1.5;resize:vertical}#previewPanel{display:none}#preview{width:100%;height:300px;border:1px solid #ccc;padding:10px;font-family:monospace;font-size:14px;line-height:1.5;resize:vertical}