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Reddit: highlight original-poster comments

Highlights comments written by the original poster with a soft background so they are easy to spot in a thread.

Code to copy

/* Highlight comments written by the original poster */
shreddit-comment[is-op-comment],
shreddit-comment:has([data-testid="comment-author-is-op"]) {
  background-color: rgba(74,144,217,0.12) !important;
  border-radius: 6px !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.