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ChatGPT: larger message text

Enlarges the message font and loosens line spacing so longer answers are easier to read.

Code to copy

/* Bigger, more readable message text */
[data-message-author-role] .markdown,
.text-message,
[data-message-author-role] p {
  font-size: 17.5px !important;
  line-height: 1.75 !important;
}

How to use this example

1. Copy the code with the button above.
2. Install JustZix (2 minutes) and open the extension on the target page.
3. Add a new rule matching that page.
4. Paste the code into the rule's CSS panel and save — the effect appears instantly.