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Trello: sticky list headers

Keeps a list header pinned at the top while you scroll a long column of cards.

Code to copy

/* Keep list headers visible while scrolling a long list */
[data-testid="list-header"],
.list-header {
  position: sticky !important;
  top: 0 !important;
  z-index: 5 !important;
  background: inherit !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.