6.3 #Checkbox.no-label Checkbox Without a Label

Toggle example guides Toggle HTML markup

.sf-checkbox

Html 
<div class="sf-checkbox">
   <input type="checkbox" class="sf-checkbox__input" id="id_5" checked />
   <label class="sf-checkbox__label" for="id_5">
        <span class="sf-checkbox__icon"></span>
     </label>
</div>