How to change background for each page in Wordpress?

I am redesigning a wordpress blog.There are 5 different pages and i want to use different background images on each of them. Is there any way to do this?

And,i don't want to change the background element. I want to change the background image of the #main 开发者_运维知识库element in my css..

I already have a css file so will overwriting the same elements using php affect anything?

Any help will be appreciated...Thanks

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Each page or post will have a different class on the body, ie. page-id-1234 post-id-4567

You can use this to your leverage inside your CSS file:

body {
    background: url('home.jpg');
}
body.page-id-1234 {
    background: url('page-1234.jpg');
}
body.post-id-4567 {
    background: url('page-4567.jpg');
}

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You could give each div#main (I assume it's a div) another class. So

<div id="main" class="pageOneBackground">...

<div id="main" class="pageTwoBackground">...

etc...

Then remove the background-img from the div#main and apply individual background-imgs to each new class.

This won't affect the php.

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You can change the background with CSS/URL of image to apply to only the background of the post, only on the background of the home/main page, or both pages. http://wordpress.org/plugins/custom-post-background/screenshots/

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If only only need to do it for 5 pages, set the main items of the body in your main CSS, for example:

body {
    background-repeat:none;
    background-position: center top;
etc...

Then on each page just add:

<style type="text/css">
body {
    background-image:url(/images/background1.png);
}
</style>

You can also see this on the source of this page.