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CSS Look & feel whatsapp.com

WhatsApp Web: larger reply indent

Adds a clearer indent and a vertical line on replies that quote a message, making threads easier to follow.

Code to copy

/* Increase indent and styling for reply threads to follow conversations */
#main div[role="row"]:has([data-testid="quoted-message"]) [data-testid="msg-container"] {
  margin-left: 24px !important;
}
#main div[role="row"]:has([data-testid="quoted-message"]) [data-testid="msg-container"]::before {
  content: '';
  position: absolute;
  left: -14px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: rgba(0,168,132,0.4);
}

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.

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