基于bootstrap后台登录界面代码

<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>