Websites can use Apple's pressure-aware trackpad in OS X El Capitan

Apple's pressure-sensitive Force Touch trackpad isn't tremendously useful in typical Mac software, but it might just get a new lease on life in OS X El Capitan. The new operating system's development tools let websites define what happens when you make that extra-strong click. You could favorite that adorable cat photo instead of zooming into it, for instance. There are some big gotchas associated with this, however. You'll need a circa-2015 Mac laptop to start with, but you'll also have to surf the web in Safari -- this won't help much if you're using an iMac, or prefer browsers like Chrome and Firefox. As clever as pressure-aware pages might be, you might not run into them that often without wider app and device support.