After so many years, Windows OS is having a huge overhaul with its Metro UI and it seems like their new style may spread to web apps as well.

Metro UI CSS is a set of styles for creating such interfaces. It is a self-contained solution but can also be used side-by-side with any other frameworks.

Metro UI CSS

There are styles for the popular tiles, images, notices, forms, buttons and typography.

The framework is also a "work in progress" and is mentioned to be enriched with more layout options + features.

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