Using DW CC 2020 in split design view.
When I include the below code in the page where where I have my html editor tag ...
<?php require_once('../../webassist/ckeditor/ckeditor.php'); ?>
The entire page (and its css formatting) behaves as if the css link is corrupt
the screenshot shows what is visible in the editor.
If I remove the above line, the page behaves correctly formatted.
Its quite odd behaviour, which only occurs with this particular code.