基于bootstrap后台登录界面代码_html/css_WEB-ITnose

<div class="signin">        <div class="signin-head"><img src="images/test/head_120.png" alt="" class="img-circle"></div>        <form class="form-signin" role="form">            <input type="text" class="form-control" placeholder="用户名" required autofocus />            <input type="password" class="form-control" placeholder="密码" required />            <button class="btn btn-lg btn-warning btn-block" type="submit">登录</button>            <label class="checkbox">                <input type="checkbox" value="remember-me"> 记住我            </label>        </form>    </div>