checked />enabled</label>
                <label><input name="auto" type="radio" value="off" />disabled</label>
            </div>
            <div>
                <label class="op-color">color：</label>
                <label><input name="color" type="radio" value="yellow" checked />yellow</label>
                <label><input name="color" type="radio" value="blue" />blue</label>
            </div>
            <button class="op-btn disabled" id="js-highlight" disabled >highlight manually</button>
       