案例:CSS3 案例     状态:可编辑再运行    进入竖版
 运行结果 
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<!DOCTYPE html>
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<html>
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<head>
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<style> 
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body
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{
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background:url(/img/bg_flower.gif);
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background-size:63px 100px;
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-moz-background-size:63px 100px; /* 老版本的 Firefox */
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background-repeat:no-repeat;
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padding-top:80px;
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}
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</style>
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</head>
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<body>
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<p>上面是缩小的背景图片。</p>
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<p>原始图片:<img src="/img/bg_flower.gif" alt="Flowers"></p>
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</body>
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</html>
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