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?? ??? ?? ??? background-image? ?? ? ?? ??? ???. CSS2?? ?? ???? background-repeat(?? ?? ?? ? ?? ?? ??), background-position(????? ?? ??? ??)? ?????. ) ??), ?? ??(??? ???? ?? ?????? ?? ??), ??? ??? ???? ?? ???? ????? ???? ??? ????? ????? ??? ?? ????? ??? ?? ???? ??? ? ????. ??? ?? ?? ???? ???? ??? ??? ?? ???? ????? ???? ??? ?????????

CSS3? ???? ? ??? ???????. CSS3??? background-image ?? background? ?? ????? ?? ?? ???? ??? ? ????. ?, ?? ?? ?? ???? ???? ??? ??? ??? ? ????. ?? ??.

?? ??? ???????.

background : [background-color] | [background-image] | [background-position][/background-size] | [background-repeat] | [background-attachment] | [background-clip] | [background-origin],...

?? ?? ???? URL? ????? ??? ?????. ?? ???? ?? ? ??? ?? ??? ??? ?? ??(?: ? ??? ?? ??), ? ?? ?? ?? ?? ???? ?????.

? ??? ?? ???? ?? ? ????.

background-image:url1,url2,...,urlN;
background-repeat : repeat1,repeat2,...,repeatN;
backround-position : position1,position2,...,positionN;
background-size : size1,size2,...,sizeN;
background-attachment : attachment1,attachment2,...,attachmentN;
background-clip : clip1,clip2,...,clipN;
background-origin : origin1,origin2,...,originN;
background-color : color;

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?? ?? ?? ?? ?? ??? ?? "/"? ????? ???.

?? ???? ?? ? ?? ??, ??? ?? ??? ??? ????(?: ?? ??? ??? ??). ?? ? ?? ?? ?? ?? ???? ???? ?????.

???? ??? ??? ? ????.

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??? 5?? ??? div ????? ???? ????? ???.

HTML ??:

<div class="div1">
    <a href="http://ask.php.cn/" title="BeyondWeb-分享知識,分享快樂">php中文網(wǎng)</a> </div>

CSS ??:

.div1{
    margin:50px auto;
    width:700px;
    height:450px;
    border:10px dashed #ff00ff;
     
    background-image:url(http://www.jnnews.tv/_CMS_NEWS_IMG_/www2/2011-04/20/sy/cms_9266e59e30584f02b09200b15f96a29f_0364_10_49_34.jpg),url(http://image27.360doc.com/DownloadImg/2011/04/2513/11209781_14.jpg),url(http://s6.sinaimg.cn/bmiddle/4efc7f58ge08613748ce6&690),url(http://imgsrc.baidu.com/forum/w%3D580/sign=79520e92632762d0803ea4b790ed0849/8a6104a4462309f740ec1ca3720e0cf3d6cad6a8.jpg),url(http://img1.3lian.com/2015/w7/85/d/101.jpg); 
    background-repeat:no-repeat,no-repeat,no-repeat,no-repeat,no-repeat;
    
}

? ???? ?? ??? ????.

background-repeat:no-repeat,no-repeat,no-repeat,no-repeat,no-repeat;

??, ??? ?? ???? ? ????. ?? "?? ???? ?? ? ??? ?? ??? ??? ?? ??(?: ?? ??? ??? ?? ??) ? ?? ?? ?? ?? ???? ?????."?? ??? ? ????. ?????:

background-repeat:no-repeat;

?? ???? ??? ?????.

?? ??? ?? ???? ??? ??? ??? ? ??? ???? ???, ?? ???? ??? ??? ?? ??? ?? ????. ?? CSS ??? ??? ????. ??>????


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<!DOCTYPE html> <html> <head> <meta charset=" utf-8"> <meta name="author" content="http://ask.php.cn/" /> <title>php中文網(wǎng)</title> <style type="text/css"> .div1{ margin:50px auto; width:700px; height:450px; border:10px dashed #ff00ff; background-image:url(http://www.jnnews.tv/_CMS_NEWS_IMG_/www2/2011-04/20/sy/cms_9266e59e30584f02b09200b15f96a29f_0364_10_49_34.jpg),url(http://image27.360doc.com/DownloadImg/2011/04/2513/11209781_14.jpg),url(http://s6.sinaimg.cn/bmiddle/4efc7f58ge08613748ce6&690),url(http://imgsrc.baidu.com/forum/w%3D580/sign=79520e92632762d0803ea4b790ed0849/8a6104a4462309f740ec1ca3720e0cf3d6cad6a8.jpg),url(http://img1.3lian.com/2015/w7/85/d/101.jpg); background-repeat:no-repeat,no-repeat,no-repeat,no-repeat,no-repeat; } </style> </head> <body> <div class="div1"> <a href="http://ask.php.cn/" title="分享知識,分享快樂">php中文網(wǎng)</a> </div> </body> </html>