问题
I have a production and development server. The problem is the directory structure.
Development:
http://dev.com/subdir/images/image.jpghttp://dev.com/subdir/resources/css/style.css
Production:
http://live.com/images/image.jpghttp://live.com/resources/css/style.css
How can I have a style.css in css folder that uses on both servers the same path for the background: url property? Is there a trick I can use with relative paths?
回答1:
The URL is relative to the location of the CSS file, so this should work for you:
url('../../images/image.jpg')
The relative URL goes two folders back, and then to the images folder - it should work for both cases, as long as the structure is the same.
From https://www.w3.org/TR/CSS1/#url:
Partial URLs are interpreted relative to the source of the style sheet, not relative to the document
回答2:
Personally, I would fix this in the .htaccess file. You should have access to that.
Define your CSS URL as such:
url(/image_dir/image.png);
In your .htacess file, put:
Options +FollowSymLinks
RewriteEngine On
RewriteRule ^image_dir/(.*) subdir/images/$1
or
RewriteRule ^image_dir/(.*) images/$1
depending on the site.
回答3:
i had the same problem... every time that i wanted to publish my css.. I had to make a search/replace.. and relative path wouldnt work either for me because the relative paths were different from dev to production.
Finally was tired of doing the search/replace and I created a dynamic css, (e.g. www.mysite.com/css.php) it's the same but now i could use my php constants in the css. somethig like
.icon{
background-image:url('<?php echo BASE_IMAGE;?>icon.png');
}
and it's not a bad idea to make it dynamic because now i could compress it using YUI compressor without loosing the original format on my dev server.
Good Luck!
来源：https://stackoverflow.com/questions/5815452/how-to-use-relative-absolute-paths-in-css-urls