Bootstrap CSS class .form-check-input

    <div class="form-check">
        <input class="form-check-input" type="checkbox" value="" id="defaultCheck1">
        <label class="form-check-label" for="defaultCheck1">
        Default checkbox
        </label>
    </div>
    <div class="form-check">
        <input class="form-check-input" type="radio" name="exampleRadios" id="exampleRadios1" value="option1" checked>
        <label class="form-check-label" for="exampleRadios1">
        Default radio
        </label>
    </div>