Safari background-position: bottom; -issue

Hi,

I've noticed that Safari 8 on Yosemite is having some issues rendering background images if they've been positioned "background-position: bottom;" in CSS. It seems to render them a seemingly arbitrary 60 px below the viewports bottom. This causes some sites to look off, and it's an issue I haven't seen in any other browser.

Anyone else noticed this issue? Any workarounds until it gets fixed?

Thanks!