如何使用CSS媒体查询将背景图像缩放到查看窗口 [英] How to use CSS media query to scale background-image to viewing window
问题描述
我有一个大图片作为网站的背景:
I have this large image as a background for a website:
body {
background: #000 url(/assets/img/living.jpg) no-repeat center center;
background-attachment: fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
height:100%;
}
但是在我的移动设备(iPhone 4S - Safari) $ c> background-attachment:fixed 似乎没有与桌面上的效果相同。为什么,我可以使用媒体查询来修复这个问题?
But on my mobile device (iPhone 4S - Safari), the background-attachment: fixed
does't seem to be having the same effect as it would on a desktop. Why is that and can I use a media query to fix that?
推荐答案
%或甚至需要媒体查询来处理背景图像。 CSS3 background-size:cover属性句柄,它自己很好。在我测试的所有移动设备上都能正常运行 - 尤其是在Android,移动版浏览器和所有平板电脑上。
Try this - you shouldn't need height:100% or even necessarily need a media query to handle the background image. The CSS3 background-size:cover property handles that pretty well on its own. Works well for me on all mobile devices I've tested - especially well on Android, mobile version browsers and all tablets.
body {
background-color: #000;
background-image: url(/assets/img/living.jpg);
background-repeat: no-repeat;
background-position: center;
background-attachment: fixed;
webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}
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