FIX CSS and responsive behaviour (feature with a menu hider is on on

htdocs/core/class/html.formfile.class.php

htdocs/core/menus/standard/empty.php

htdocs/core/tpl/document_actions_post_headers.tpl.php

htdocs/ecm/index.php

htdocs/ecm/index_auto.php

htdocs/main.inc.php

htdocs/theme/eldy/style.css.php