html背景铺满

html：

         </div>
    </div>
</body>

css:

.log-body{
background: url(’…/img/login_bg.png’) no-repeat center center;
background-size: 100% 100%;
background-attachment: fixed;
}

原文：https://blog.youkuaiyun.com/leng0920/article/details/88819508