Display of maintenance mode

Question

Can I display a specific sentence (better HTML) or static page in the replacement of the error message?

Answer 1

It's the phrase 'site_in_maintenance' in qa-lang-misc.php so you can change it there. 

You can also find the appropriate part of qa-page.php and show some custom content by adding the following line:

$qa_content['custom']='YOUR CUSTOM HTML CODE';

... after ...

$qa_content['error']=qa_lang_html('misc/site_in_maintenance');