The homepage for the band The XX is super minimal, just like their music, but it has just one beautiful interactive element over the X logo. I didn’t notice it at first until the oily rainbow coloring shifted slightly while I was reading the navigation options. Then when I hovered my mouse cursor over the X, it looked like I was disturbing a puddle of oily water and seeing the rainbow colored light refractions change. Well done to the designers of thexx.info. The album’s not so bad either. ;)