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Trello: hide promo and onboarding banners

Removes promotional banners and onboarding nudges that take up screen space.

Code to copy

/* Hide promotional footer bars and onboarding nudges */
[data-testid="onboarding-banner"],
[data-testid="promo-footer"],
.global-promo-banner,
#trello-root .promo-banner {
  display: none !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.