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Action Reading & focus medium.com

Medium: toggle a comfy reading preset

With one click turns a preset on or off: a narrower column, serif font and looser line spacing.

Code to copy

// Toggle a comfortable reading preset: width, serif font, spacing
const ID = 'jz-med-reading';
const old = document.getElementById(ID);
if (old) { old.remove(); }
else {
  const s = document.createElement('style');
  s.id = ID;
  s.textContent =
    'article{max-width:42rem!important;margin:0 auto!important}' +
    'article p,article li{font-family:Georgia,serif!important;' +
    'font-size:21px!important;line-height:1.85!important}';
  document.head.appendChild(s);
}

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. Enable the action panel, add a button in the Actions tab and paste the code into it — run it with one click.

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