<form> <ul> <li>

 

            <div class="loginbox">
                <form action="index.html" method="get">
                    <ul>
                        <li><input type="text" class="ib account" placeholder="用户名" id="txtaccount"></li>
                        <li><input type="password" class="ib" placeholder="密码" id="txtpassword"></li>
                        <li><input type="button" class="submitbtn" name="submit" value="登录" id="btlogin"></li>
                        <li><p class="forget"><a href="#">忘记密码？</a></p></li>
                    </ul>
                </form>
            </div>