[sergiotapia]

"amazing"? These look terrible and would make any website look like a throwback from Geocities.

Neat that it's done with CSS3, not practical for any real purpose though.

[saturdayplace]

All it'd take to make most of these usable is finessing the colors a bit so they don't jump off the page like they do here. It's definitely possible to make the patterns more subtle while retaining the shape effects. I viewed the page as a nifty demonstration of CSS-based patterns. Actually implementing the appropriate colors with these is left as an exercise for the reader.

[knieveltech]

According to my laptop's cooling fan color palette is the least of the issues here. I'm pretty sure that roasting your users' CPUs to render a background texture is considered poor form.

[saturdayplace]

I acknowledge the performance issues. I was responding, however, to a comment about what these make the site look like.

[dbrian]

What? I think you might have some issues there. These render instantly on my phone and on my Nexus tablet.

[hmottestad]

Notice how the site uses a png noise image as background and none of the css3 backgrounds.

[baby]

Most are bad yes, but what if you could successfully replace one of those[1] in CSS. That would be a very good optimization hack.

[1] http://subtlepatterns.com/

EDIT: Or at least it seems. Maybe rendering as much details in the background with CSS is worse than just displaying repetitively a simple png.

[manojlds]

I can see this being used: http://lea.verou.me/css3patterns/#lined-paper

[inafield]

I agree that they look terrible. It felt like I was thrown back to Windows 3.1 and Windows 95 tiled backgrounds. Trippy.