Simple example of Google's Swift Out animation easing from the Material Design document at http://www.google.com/design/spec/animation/authentic-motion.html#authentic-motion-mass-weight

uses translate3d, perspective, and preserve-3d

Attribute Modules, or AM, at its core is about defining namespaces for your styles to live in.
<div am-Row>
<div am-Column="12">Full</div>
</div>
<div am-Row>
<div am-Column="4">Thirds</div>
<div am-Column="4">Thirds</div>
<div am-Column="4">Thirds</div>
</div>

[am-Row] { / max-width, clearfixes / }
[am-Column~="1"] { / 1/12th width, floated / }
[am-Column~="2"] { / 1/6th width, floated / }
[am-Column~="3"] { / 1/4th width, floated / }
[am-Column~="4"] { / 1/3rd width, floated / }
[am-Column~="5"] { / 5/12th width, floated / }
/ etc /
[am-Column~="12"] { / 100% width, floated / }

Holy grail

web browser compatibility site, use this all the time

Myth is a postprocessor that lets you write pure CSS without having to worry about slow browser support, or even slow spec approval.