 }
.markdown-preview-enhanced[is="space-pen-div"] .code-chunk.running .status { display: block; }
.markdown-preview-enhanced[is="space-pen-div"] .back-to-top-btn { position: fixed; display: none; right: 24px; top: 54px; }
.markdown-preview-enhanced[is="space-pen-div"]:hover .back-to-top-btn { display: block; opacity: 0.4; }
.markdown-preview-enhanced[is="space-pen-div"]:hover .back-to-top-btn:hover { opacity: 1; }
.markdown-preview-enhanced:not([is="space-pen-div"]) .code-chunk .btn-group { display: none; }