trustieforge/public/assets/wechat/add_class.html

<div class="post-container">
    <div class="add-class-box">
        <p class="tac add-class-tip">输入班级邀请码，即刻加入班级！</p>
        <form class="mb20">
            <input type="text" class="class-number-input" />
        </form>
        <a href="javascript:void(0);" class="c-grey4 fl cancel-btn">取消</a>
        <div class="slice fl">
            <div class="slice-line"></div>
        </div>
        <a href="javascript:void(0);" class="c-blue fl submit-btn">确定</a>
    </div>
</div>