CSS3之多背景background

Love The Way You Lie 2022-09-17 03:13 243阅读 0赞

CSS3中新加了多背景这个属性，和CSS2的使用方法一样，只不过图片可以从1个图片变成多个图片了。在CSS3中多背景的使用是非常常见的，所以，这个多背景的属性应用很普遍的，所以掌握CSS3之多背景background是当务之急呀。

**一、background的语法**

**1、background的分写**

background-image: [background-image], [background-image], [background-image];
    background-position: [background-position], [background-position], [background-position];
    background-repeat: [background-repeat], [background-repeat], [background-repeat];

**2、background的简写**

background: [background-image] [background-position] [background-repeat], 
                [background-image] [background-position] [background-repeat], 
                [background-image] [background-position] [background-repeat];

**二、background的兼容情况**

![梦龙小站][SouthEast]

**三、background的实例**

**1、圆角效果**

*CSS代码：*

.a {width:300px;}
    .b {background:url("http://www.leemagnum.com/img/left.jpg") no-repeat left top,
                   url("http://www.leemagnum.com/img/right.jpg") no-repeat right top;padding:0 10px;}
    .b div {background:url("http://www.leemagnum.com/img/mid.jpg") repeat-x left top;height:48px;}

*HTML代码：*

*预览效果：*

![梦龙小站][SouthEast 1]

**2、多背景图片**

*CSS代码：*

div {width:300px;height:80px;border:1px solid #000;
    background:url("http://www.leemagnum.com/img/logo.jpg") no-repeat,
    url("http://www.leemagnum.com/img/a.jpg") no-repeat right -300px;
    -webkit-transition:0.5s background-position ease;
    }
    div:hover {background-position:0 0,right 0;}

*HTML代码：*

*预览效果：*

**(1)默认状态**

![梦龙小站][SouthEast 2]

**(2)hover状态**

![梦龙小站][SouthEast 3]

CSS3之多背景background就为大家介绍完了，希望能对大家有所帮助。CSS3之多背景background在CSS3的项目中运用比较广泛，大家有更好的案例要积极分享哟。

[SouthEast]: /images/20220828/9835a038638045978a427892b9a3db4a.png
[SouthEast 1]: /images/20220828/579167b478b1402b9b8cdaa698626770.png
[SouthEast 2]: /images/20220828/bc508d6c193245f6a22f5814a9a973d5.png
[SouthEast 3]: /images/20220828/8dd78e8055064021b7fc5a986c3cba00.png