The paragraph that rewrites itself
Every host knows the feeling of sending an invitation before the plan is settled. You put the date out, then the venue slips by an hour, or the reception moves to a different room. If the invitation was a printed card or an exported image, it is now wrong, and every guest holds the wrong version. Correcting it means a fresh round of messages explaining what has changed.
An online invitation website sidesteps the scramble. The details are not frozen in the thing you sent; they live on a page guests open fresh each time. Edit the once-slipping start time and save, and the next person to tap the link reads the right hour. The invitation behaves like a living paragraph rather than a one-time announcement.