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Stuck in making dash version of this html code

I am trying to style radio buttons and came across this article on w3schools, which has this html code.

<label class="container">One
  <input type="radio" name="radio">
  <span class="checkmark"></span>
</label>
<label class="container">Two
  <input type="radio" name="radio">
  <span class="checkmark"></span>
</label>
<label class="container">Three
  <input type="radio" name="radio">
  <span class="checkmark"></span>
</label>
<label class="container">Four
  <input type="radio" name="radio">
  <span class="checkmark"></span>
</label>

and here’s the dash version i could come up with. the problem is, i couldn’t figure out where to put span.

dash_html.Label(children=[dash_core.RadioItems(id="radio_button_inputs",
                                               options=[{'label': 'One','value': 'one'},
                                                        {'label': 'Two', 'value': 'two'},
                                                        {'label': 'Three', 'value': 'three'},
                                                        {'label': 'Four', 'value': 'four'}
                                                       ],
                                               value='all')],
                className='container')