基础部分 - 18背景复合写法 - 《前端入门 Html5 Css3 移动Web_》

实际开发中，复合写法更提倡。

background: 背景颜色背景图片地址背景平铺背景图像滚动背景图片位置；
例如：

body {
      /* background-color: black;
      background-image: url(https://ossweb-img.qq.com/upload/webplat/info/yxzj/20210908/78624200846891.png);
      background-repeat: no-repeat;
      background-position: center top;
      background-attachment: fixed; */
      background: black url(https://ossweb-img.qq.com/upload/webplat/info/yxzj/20210908/78624200846891.png) no-repeat fixed center top;
    }

<body>
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</body>