Outlook: strike through read subjects
Strikes through the subject of already-read emails in the list so unread ones are easier to spot.
Code to copy
// Strike through the subject of already-read messages in the list
function strikeRead() {
document.querySelectorAll('div[role="option"]').forEach(function (row) {
const label = (row.getAttribute('aria-label') || '').toLowerCase();
const isRead = label.indexOf('unread') === -1 && label.indexOf('nieprzeczyt') === -1;
const subject = row.querySelector('span[title], div[title]');
if (subject) {
subject.style.textDecoration = isRead ? 'line-through' : 'none';
}
});
}
strikeRead();
const obs = new MutationObserver(strikeRead);
obs.observe(document.body, { childList: true, subtree: true });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.
- Paste the code into the rule's JavaScript panel and save — it runs on every page visit.
Rate this example
No ratings yet — be the first.