<div id="tabPage">
    <div class="tabP">
        <div id="tag">
            <span ng-class="{true: 'navdown', false: ''}[isActive]" ui-sref=".iPhone"><a href="" class="a1">苹果版</a></span>
            <span ng-class="{true: '', false: 'navdown'}[isActive]" ui-sref=".android"><a href="" class="a2">安卓版</a></span>
        </div>
    </div>
    <div id="tabContent">
        <div ui-view></div>
    </div>
</div>