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
- Copy the code with the button above.
- Install JustZix (2 minutes) and open the extension on the target page.
- Add a new rule matching that page.
- 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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