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Claude: larger message text

Enlarges the message font and loosens line spacing for more comfortable reading.

Code to copy

/* Larger, easier-to-read message text */
.font-claude-message,
[data-testid="user-message"],
.prose p, .prose li {
  font-size: 17px !important;
  line-height: 1.72 !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.