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Outlook: highlight flagged messages

Highlights flagged messages with a warm background so follow-up tasks stand out at a glance.

Code to copy

/* Highlight flagged messages with a warm background tint */
div[role="option"][aria-label*="Flagged"],
div[role="option"][aria-label*="Oflagowane"],
div[role="option"]:has(button[aria-label*="Flagged"][aria-pressed="true"]) {
  background: #fff3e0 !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.