<div>
<style scoped>
    .dataframe tbody tr th:only-of-type {
        vertical-align: middle;
    }

    .dataframe tbody tr th {
        vertical-align: top;
    }

    .dataframe thead th {
        text-align: right;
    }
</style>
<table border="1" class="dataframe">
  <thead>
    <tr style="text-align: right;">
      <th></th>
      <th>col1</th>
      <th>col2</th>
      <th>col3</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <th>0</th>
      <td>1.00</td>
      <td>1.10</td>
      <td>None</td>
    </tr>
    <tr>
      <th>1</th>
      <td>2.00</td>
      <td>None</td>
      <td>2.00</td>
    </tr>
    <tr>
      <th>2</th>
      <td>3.00</td>
      <td>3.30</td>
      <td>3.00</td>
    </tr>
  </tbody>
</table>
</div>