Apply background to

I can add a custom background for my pages using this css code:
body {
background-image: url(‘http://mysite.com/press/wp-content/uploads/2014/10/blackpaper.png’);
background-color: #121212;
background-size: cover;
background-attachment: fixed;
}

Sample: http://screencast.com/t/j9aStWxzDq

But I can’t seem to do the same for my posts or my “post page” using the same coding.

I have background images off.
And I have used this code to create a custom homepage background than what I want to use for my other pages.
Right now, I am using the above code for my legal pages, and would like to apply the same background to my posts and “post page”.

Thanks for the help!

Would still love to hear how tagdiv would solve the problem…

In the meantime, after finding a couple of duds, I picked up a plugin that I find myself liking quite a bit called “Custom Backgrounds for WordPress”:

http://codecanyon.net/item/custom-backgrounds-for-wordpress/

Thanks, Lucian!

I did find another very flexible solution with a wp plugin called “Custom Backgrounds for WordPress” here:
http://codecanyon.net/item/custom-backgrounds-for-wordpress/121983

Lot of additional features/options to it, and gave me exactly what I was looking for… the ability to apply a single background to all posts.

Of particular interest, though not sure if I will use it for this feature or not, it also has the ability on each page to select a custom background for that specific page.