Hi Tom,
I came to this thread searching for a way to add content before <div class="site-content" id="content">. The reason why I need that option are breadcrumbs. I find this position ideal for them as they could spread through the entire content width when using a layout with sidebars.
If I place the breadcrumbs code inside GP Hooks locations “Inside Content Container” or “Before Content” I only get the content-area width for them.
If you have a better solution please let me know.
Cheers!