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Trello: distraction-free board

Hides the sidebar, inbox and banners all at once, leaving just the board with its lists.

Code to copy

/* Distraction-free board: hide sidebar, ads and inbox at once */
[data-testid="board-sidebar"],
[data-testid="inbox-and-planner"],
[data-testid="premium-banner"],
[data-testid="upgrade-button"],
.board-sidebar {
  display: none !important;
}
[data-testid="board-canvas"] {
  margin-left: 0 !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.