Description of the Issue:

While surfing the OpenAI image model documentation at https://platform.openai.com/docs/guides/images/usage, I noticed that when switching the language to Node.js in the code section, selecting the code input results in the background and text color being white, making the text invisible.

Expected Behavior:
The selected text should have a distinct color from the background, making it easily readable.

Screenshots (optional but helpful):