List of steps to reproduce (step by step, including full links if applicable):
- Enable realtime preview
- Edit any CSS/JS page
What happens?:
CodeEditor looks broken, as in the screenshot in the last section.
What should have happened instead?:
CodeEditor should have only appeared with a "Preview" button in the top right?
Software version (if not a Wikimedia wiki), browser information, screenshots, other information, etc.:
Browser: Opera GX LVL 3 (core: 85.0.4341.72)