Where To Put <style type="text/css"> Code
 

I built an epub file that has many html files in it. Every html file has the following code.
Can I put the code in the style section in just one place in the epub document or does it have to be in each html file.?

Put it where it belongs: The stylesheet, then link the stylesheet to all the needed files.

Note: SGC Page styling as you show is NOT transferable between pages.

SGS# are assigned in the order used ON THAT FILE
so on one page SGC-1 might be used by:
h3.SGC-1 {text-align:center; font-style: italic; }
and another page
h2.SGC-1 {text-align:center; font-weight: bold; }


Create your own style selectors and replace the each class="with newname"

So what you're saying is I have done it correctly?

I have two css files in the epub file with the rest of my formatting.

1. page_styles.css
   
   Code:

   ---

   @page {
    margin-bottom: 5pt;
    margin-top: 5pt
    }

   ---

2. stylesheet.css
   
   Code:

   ---

   .calibre {
    display: block;
    font-size: 1em;
    margin-bottom: 0;
    margin-left: 5pt;
    margin-right: 5pt;
    margin-top: 0;
    padding-left: 0;
    padding-right: 0
    }
.versebody {
    display: block;
    margin-bottom: 0em;
    margin-left: 1em;
    text-indent:-1em;
    margin-right: 0;
    margin-top: 0em
    }
...

   ---

As long as they are linked to the pages:
In the file browser: Select all the files that make up the main body (content, usually not the boilerplate files:titlepage,coverpage)
rightclick: Link stylesheet: tick BOTH CSS you list as any existing usage not ticked will be deleted.

There is no need of the infile CSS if you cover those cases in the main CSS

h2, h3 {text-align: center; }
centers all H2 and H3.. Anyplace in the book

Thank you.