<div>
    <label><input type="radio" class="{{ modifier_class }}" value="option1" name="example-radio" checked> Option one</label>
</div>

<div>
    <label><input type="radio" class="{{ modifier_class }}" value="option2" name="example-radio"> Option two</label>
</div>

<div>
    <label><input type="radio" class="{{ modifier_class }}" value="option3" name="example-radio" disabled> Option three is disabled</label>
</div>
