Examples
Default styling
:disabled
Disabled checkbox
:checked
Checked checkbox
:focus
Focused checkbox
:checked:disabled
Checked and disabled
Markup
<span class="Checkbox">
 <input id="cb11[modifier class]" type="checkbox" name="cb" class="Checkbox-input [modifier class]">
 <label for="cb11[modifier class]" class="Checkbox-label">Check me</label>
</span>
Source: components/atoms/checkbox.less, line 7