问题:

I can't get editable html code behind the page. I want to make some changes to the page. Web site is hosted in the remote server. Someone assigned this task. There is empty editor when open edit page as below image.

Also I added plugin and actived it but can't get the result.

回答1:

The picture you posted is of the WYSIWYG editor, which is only for adding content to the page.

If you want to edit the layout of the page itself you have 2 options -

Minor page edits to appear across all pages on the site - Go to Appearance -> editor -> page.php and then edit the code to suite your needs.

Large page edits to appear on one or two pages -

Get access to the files
Duplicate page.php with a different name
Edit code

When you go to add a new page you should have an option to pick a page template. Choose the page template you just created.

回答2:

If you know exactly what you are doing, you can use Chrome "Inspect" feature, and change the HTML of the content inside the WordPress WYSIWYG Editor. After injecting your HTML, click Preview or Publish and your changes will be saved correctly.