diff --git a/{{cookiecutter.project_name}}/docs/_static/css/custom.css b/{{cookiecutter.project_name}}/docs/_static/css/custom.css
new file mode 100644
index 00000000..b8c8d47f
--- /dev/null
+++ b/{{cookiecutter.project_name}}/docs/_static/css/custom.css
@@ -0,0 +1,4 @@
+/* Reduce the font size in data frames - See https://github.com/scverse/cookiecutter-scverse/issues/193 */
+div.cell_output table.dataframe {
+    font-size: 0.8em;
+}
diff --git a/{{cookiecutter.project_name}}/docs/conf.py b/{{cookiecutter.project_name}}/docs/conf.py
index ee7c82ef..64484fd5 100644
--- a/{{cookiecutter.project_name}}/docs/conf.py
+++ b/{{cookiecutter.project_name}}/docs/conf.py
@@ -109,6 +109,8 @@
 #
 html_theme = "sphinx_book_theme"
 html_static_path = ["_static"]
+html_css_files = ["css/custom.css"]
+
 html_title = project_name
 
 html_theme_options = {
diff --git a/{{cookiecutter.project_name}}/docs/notebooks/example.ipynb b/{{cookiecutter.project_name}}/docs/notebooks/example.ipynb
index eed34875..4c78dc68 100644
--- a/{{cookiecutter.project_name}}/docs/notebooks/example.ipynb
+++ b/{{cookiecutter.project_name}}/docs/notebooks/example.ipynb
@@ -15,6 +15,7 @@
    "source": [
     "import numpy as np\n",
     "from anndata import AnnData\n",
+    "import pandas as pd\n",
     "import {{cookiecutter.package_name}}"
    ]
   },
@@ -73,6 +74,72 @@
    "source": [
     "{{cookiecutter.package_name}}.pp.basic_preproc(adata)"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>A</th>\n",
+       "      <th>B</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>a</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>b</td>\n",
+       "      <td>2</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>c</td>\n",
+       "      <td>3</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "   A  B\n",
+       "0  a  1\n",
+       "1  b  2\n",
+       "2  c  3"
+      ]
+     },
+     "execution_count": 4,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "pd.DataFrame().assign(A=[\"a\", \"b\", \"c\"], B=[1, 2, 3])"
+   ]
   }
  ],
  "metadata": {
@@ -91,7 +158,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.12"
+   "version": "3.11.3"
   },
   "vscode": {
    "interpreter": {
diff --git a/{{cookiecutter.project_name}}/pyproject.toml b/{{cookiecutter.project_name}}/pyproject.toml
index 3641c327..829241d7 100644
--- a/{{cookiecutter.project_name}}/pyproject.toml
+++ b/{{cookiecutter.project_name}}/pyproject.toml
@@ -41,6 +41,7 @@ doc = [
     "ipykernel",
     "ipython",
     "sphinx-copybutton",
+    "pandas",
 ]
 test = [
     "pytest",