Do not edit the Twenty Twelve theme. It is the default WordPress theme and having access to an unedited version of the theme is vital when dealing with a range of site issues. First create a child theme for your changes.
Thread Starter
Sokon
(@sokon)
It’s the childtheme of the twentytwelve 😉
Make a copy of footer.php in your child theme, edit this file and remove:
<a href="<?php echo esc_url( __( 'http://wordpress.org/', 'twentytwelve' ) ); ?>" title="<?php esc_attr_e( 'Semantic Personal Publishing Platform', 'twentytwelve' ); ?>"><?php printf( __( 'Proudly powered by %s', 'twentytwelve' ), 'WordPress' ); ?></a>
Thread Starter
Sokon
(@sokon)
Thank you for your answer, but i doesn’t mean the part with the copyright info. I mean the relativ wide, empty, white part above these copyright info and under the page content.
I marked it with red arrows in the picture in my first post.
that is a pure formatting issue which is not really supported here in this forum.
try and use a browser inspection tool (Firebug or the ‘right-click’ ‘inspect element’ feature of some browsers) to find out where the space is coming from.
without a live link, this would be difficult to discuss in any way.
formatting questions are better supported in a css forum like http://csscreator.com/forum