I reckon your looking for the template
PAGE_CONTAINER
.
Probably in this section:
HTML:
<header class="p-header" id="header">
</header>
Just a heads up though, in the future to find code, you can right click on what your looking for and click
insepect
This will let you see the html of the page. When you hover over a section it'll highlight what the html is attached to.
Copy part of that code for example I copied:
HTML:
<header class="p-header" id="header">
Then go to your templates in the admin control panel. Go to
refine search
and in the
Text contains:
paste in the html your copied. This should show you any template that contains the html you copied.