If you're using CKEditor 4:

You can customize the editor UI using config options or CSS.

🚫 Option 1: Disable the title bar

If that’s a dialog box, you can remove the title by overriding CKEDITOR.dialog.prototype._.title Option 2: CSS Hack

If it's part of the editor frame and not a dialog: Inspect the element (right-click → Inspect) and then use custom CSS to hide it NOTE : 1. .cke_top is the toolbar/header container in CKEditor 4.

2. Be careful: hiding it removes the entire toolbar, not just the border.

3. To hide only the border