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# Multiple backgrounds **版本:CSS3** 继承性:无 ### 语法: **background** : [background-image] | [background-origin] | [background-clip] | [background-repeat] | [background-size] | [background-position] **相关属性**: background-image | [background-origin](#) | [background-clip](#) | background-repeat | [background-size](#) | background-position ### 取值: *<background-image>*:指定或检索对象的背景图像。*<background-origin>*:指定背景的显示区域。参见[background-origin](#)*<background-clip>*:指定背景的裁剪区域。参见[background-clip](#)*<background-repeat>*:设置或检索对象的背景图像是否及如何重复铺排。*<background-size>*:指定背景图片的大小。参见[background-size](#)*<background-position>*:设置或检索对象的背景图像位置。 ### 说明: 多重背景图象,可以把不同背景图象只放到一个块元素里。 多个图片url之间使用逗号隔开即可;如果有多个背景图片,而其他属性只有一个(例如background-repeat只有一个),表明所有背景图片应用该属性值。 CSS3中在容器的多层背景,各子属性与逗号来分隔值,如果指定的值,如下: > background-image: w1, w2, w3,…, wM background-repeat: x1, x2, x3,…, xR background-size: y1, y2, y3,…, yS background-position: s1, s2, s3,…, sP 当背景层的数值是N = max(M,R, S, P) 每个属性可以假如它的值为n,通过重复指定的值如下所示: > background-image: w1 > ,… wM > , w1 > ,… wM > , w1 > ,… /* N > values */ > background-repeat: x1 > ,… xR > , x1 > ,… xR > , x1 > ,… /* N > values */ > background-size: y1 > ,… yS > , y1 > ,… yS > , y1 > ,… /* N > values */ > background-position: s1 > ,… rP > , s1 > ,… rP > , s1 > ,… /* N > values */ 范例书写: > background-image: url(img/multiple-backgrounds.png), url(img/multiple-backgrounds.png), url(img/multiple-backgrounds.png); background-position: left top, -320px bottom, -640px top; background-repeat: no-repeat, no-repeat, repeat-y; 也可以简写: > background: url(img/multiple-backgrounds.png) left top no-repeat, url(img/multiple-backgrounds.png) -320px bottom no-repeat, url(img/multiple-backgrounds.png) -640px top repeat-y; ### 兼容性: <table><thead><tr><th class="type">类型</th> <th class="type_ie"><img src="https://box.kancloud.cn/2015-09-02_55e5d385322ef.png" alt="IE" />Internet Explorer</th> <th class="type_firefox"><img src="https://box.kancloud.cn/2015-09-02_55e5d385398e4.png" alt="Firefox" />Firefox</th> <th class="type_chrome"><img src="https://box.kancloud.cn/2015-09-02_55e5d38541e4c.png" alt="Chrome" />Chrome</th> <th class="type_opera"><img src="https://box.kancloud.cn/2015-09-02_55e5d385491d2.png" alt="Opera" />Opera</th> <th class="type_safari"><img src="https://box.kancloud.cn/2015-09-02_55e5d38552849.png" alt="Safari" />Safari</th> </tr></thead><tbody><tr><td rowspan="4" class="version">版本</td> <td class="support no"><span>(×)</span>IE6</td> <td class="support no"><span>(×)</span>Firefox 2.0</td> <td class="support yes"><span>(√)</span>Chrome 1.0.x</td> <td class="support no"><span>(×)</span>Opera 9.63</td> <td class="support yes"><span>(√)</span>Safari 3.1</td> </tr><tr><td class="support no"><span>(×)</span>IE7</td> <td class="support no"><span>(×)</span>Firefox 3.0</td> <td class="support yes"><span>(√)</span>Chrome 2.0.x</td> <td></td> <td class="support yes"><span>(√)</span>Safari 4</td> </tr><tr><td class="support no"><span>(×)</span>IE8</td> <td class="support no"><span>(×)</span>Firefox 3.5</td> <td></td> <td></td> <td></td> </tr><tr><td></td> <td></td> <td></td> <td></td> <td></td> </tr></tbody></table> ### 示例: ![multiple-backgrounds](https://box.kancloud.cn/2015-09-02_55e5d3855b228.png) <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><meta http-equiv="Content-Language" content="utf-8" /><meta name="robots" content="all" /><meta name="author" content="Tencent-ISRD" /><meta name="Copyright" content="Tencent" /><title>Border-radius</title></head><body><div style="background-image: url(img/multiple-backgrounds.png), url(img/multiple-backgrounds.png), url(img/multiple-backgrounds.png); background-position: left top, -320px bottom, -640px top;background-repeat: no-repeat, no-repeat, repeat-y;width:260px;padding:20px;"> <p>这是一个宽为300px,高度自适应的多背景示范容器,完成的一个九宫格模型</p> </div></body></html> 复制代码 Copyright © 2009 [Tencent ISD webteam](http://webteam.tencent.com/). All Rights Reserved ### 快速跳转 - [语法](# "跳转到“语法”") - [取值](# "跳转到“取值”") - [说明](# "跳转到“说明”") - [兼容性](# "跳转到“兼容性”") - [示例](# "跳转到“示例”")