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Outlook: smaller message-list font

Shrinks the message-list text to pack even more emails into the inbox at once.

Code to copy

/* Shrink the message-list text to pack the inbox tighter */
div[role="listbox"] div[role="option"] span,
div[role="listbox"] div[role="option"] div[title] {
  font-size: 12px !important;
  line-height: 1.3 !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.