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Hacker News: comfortable page width

Caps the main table width and centres it so lines of text never become uncomfortably long.

Code to copy

/* Cap the page width so lines of text stay comfortable to read */
#hnmain {
  max-width: 920px !important;
  margin: 0 auto !important;
  width: 100% !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.