I know, that's not a limit tho. you get the canvas origin from the engine and offset the animation. you keep a pool of div on the side, and when you need one depending on your culling result you attach the sprite image as a background, tweak the css animation start,end and attacch it to the overlay. you keep a relative offseted parent on the div, so that as the canvas scroll, you can adjust it wherever you go. overflow hidden takes care of the visibility if they go out of the canvas area.

hybrid canvas html game are a joy to work with, there's no reason to limit oneself to canvases as long as you can export and import events to the external world. I've built some, and having for example the ux in html sending control events to the canvas cut the development time a lot. all these 2d libs have painful ux api, with dreadful limitation, while in html you can just slap whatever stile and it'll always be crisp.