div class="layui-form">
        <div class="layui-form-item layui-form-text">
          <div class="layui-input-block">
            <textarea name="desc"  placeholder="请输入内容" class="layui-textarea"></textarea>
          </div>
        </div>

        <div class="layui-form-item" style="overflow: hidden;">
          <div class="layui-input-block layui-input-right">
            <button class="layui-btn" lay-submit lay-filter="formDemo">发表</button>
          </div>
          <div class="layadmin-