With iOS 10, Safari didn't receive a major facelift like some other Apple apps did. That's not saying Safari didn't have a few tricks up its sleeve that make browsing the web a more pleasing experience for everyone. One of the little things about iOS 10 that I'm sure many folks appreciated was the ability for Safari to play videos inline on the iPhone and iPod touch, too.
This feature has been present on iPads for years.
Thankfully, you can watch most web videos inline on your iPhone and iPod touch, even while multitasking in Safari. Telling Safari to play a video inside the webpage isn't as obvious as it could have been, so here's a little tutorial to get you up to speed.