My 1998 Honda CRV does not have spark. It died out the other day while idling. Had a hard time starting throughout the day until finally it quit starting altogether. What could be the problem?

Replace the Ignition Control Module (ICM) and coil:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-4.html#post265896