全高/宽度背景图像



我有一个背景图像,我想在我的网站上使用它,但是问题是我不能以任何尺寸的高度和宽度,请帮助我,请检查以下代码

当前代码,代码#1:haft而不是完整

body {
    background: url(http://localhost/wordpress/wp-content/uploads/2016/11/CHRISTINE-BACKGOURND.jpg) no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    /* background-size: cover; */
    height: auto!important;
    width: 100%!important;
}

代码#2

body {
    background: url(http://localhost/wordpress/wp-content/uploads/2016/11/CHRISTINE-BACKGOURND.jpg) no-repeat center center fixed;
    background-color: white;
    background-size: auto 100%;
    background-repeat: no-repeat;
    background-position: left top;
}

我无法使其全宽度和高度:(请帮助

html{
  width:100%,height:100%;
  }
body{ 
  background-image: url(https://i.stack.imgur.com/s0G3w.jpg);
  height:100%;
  width:100%;
  }
<body>
</body>

请尝试此

html

<body></body>

CSS

html{
  width:100%,height:100%;
  }
body{ 
  background: url(../image.jpg) no-repeat;
  background-size:cover;
  height:100%;
  width:100%;
  }