The clouds in the background are dynamically rendered. They're animating seven images of clouds using CSS transforms, and it doesn't look like they're using CSS animations to do it. If your computer is going into jet engine mode, chances are your browser isn't on speaking terms with your GPU and everything is being rendered on your CPU.

It is disgusting a webpage with that little content makes it that fucking unusable.

Come on people. Pretty designs are meaningless if you can't actually use them. How can I have faith in the claims you make about your phone if your website is this unusable? This exact form-over-function is why I hate the modern web.

More people need to see http://motherfuckingwebsite.com/ and understand.

haha Thank you for that link, it's now on my bookmarks!

PS: I logged in just to reply to your comment!

Rendering one line of text on each page fold is a difficult task. Think of all the strokes in a single letter!

I'm on a Macbook Air in Chrome and can barely scroll.

I also have a Macbook Air and it seems to work smoothly in Safari. I guess there are differences in how Safari and Chrome uses (or doesn't use) GPU acceleration on that page.

I have to use Safari for a bunch of stuff because Apple are willing to implement the DRM that lets the site use hardware acceleration (e.g. Netflix) to avoid my MBA sounding like a jet engine.

Do you have a good GPU?

My gpu is fine, but Firefox + Linux doesn't really like it too much :(

Still, no website but youtube in fullscreen has made my poor pc do these unspeakable things to its fan speeds