CSS3 - 多背景

多背景

CSS 多背景属性用于一次添加一张或多张图像，无需 HTML 代码，我们可以根据需要添加图像。多背景图像的示例语法如下 -

#multibackground {
   background-image: url(/css/images/logo.png), url(/css/images/border.png);
   background-position: left top, left top;
   background-repeat: no-repeat, repeat;
   padding: 75px;
}

最常用的值如下所示 -

先生。	价值与描述
1	背景用于设置一节中的所有背景图像属性
2	背景剪辑用于声明背景的绘画区域
3	背景图用于指定背景图像
4	背景起源用于指定背景图像的位置
5	背景大小用于指定背景图像的大小

例子

以下是演示多背景图像的示例。

现场演示

<html>
   <head>
      <style>
         #multibackground {
            background-image: url(/css/images/logo.png), url(/css/images/border.png);
            background-position: left top, left top;
            background-repeat: no-repeat, repeat;
            padding: 75px;
         }
      </style>
   </head>

   <body>
   
      <div id = "multibackground">
         <h1>www.tutorialspoint.com</h1>
         <p>
            Tutorials Point originated from the idea that there exists a class of 
            readers who respond better to online content and prefer to learn new 
            skills at their own pace from the comforts of their drawing rooms. 
            The journey commenced with a single tutorial on HTML in  2006 and elated 
            by the response it generated, we worked our way to adding fresh tutorials 
            to our repository which now proudly flaunts a wealth of tutorials and 
            allied articles on topics ranging from programming languages to web designing 
            to academics and much more..
         </p>
      </div>
      
   </body>
</html>

它将产生以下结果 -

多背景尺寸

接受多背景属性来为不同的图像添加不同的尺寸。示例语法如下所示 -

#multibackground {
   background: url(/css/imalges/logo.png) left top no-repeat, url(/css/images/boarder.png) right bottom no-repeat, url(/css/images/css.gif) left top repeat;
   background-size: 50px, 130px, auto;
}

如上面的示例所示，每个图像都有特定的尺寸，如 50px、130px 和自动尺寸。