JavaScript micro library for Ext JS style layouts?

I've been developing with Ext JS for a while but a new project has me getting up to speed on the world of JS micro frameworks/libraries. Are there any JS layout libraries that provide an abstraction layer to do things that come close 开发者_StackOverflow社区to Ext JS container style layouts (hboxes, vboxes, anchor layouts, etc)?

I didn't seen anything on microjs.com but thought I'd ask here to double-check.

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MochaUI springs to mind (not a micro framework, but smaller than Ext).

Others that might interest you are uki and Moolego UI.

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After doing some more research the CSS3 Flexible Box Model is everything I'm looking for. http://www.html5rocks.com/en/tutorials/flexbox/quick/

http://www.css3.info/introducing-the-flexible-box-layout-module/

http://www.the-haystack.com/2010/01/23/css3-flexbox-part-1/