Bootstrap

a.k.a twitter bootstrap.
This is one of the most famous platform recently, mainly because it fully the single responsive design.
Responsive design means you will see your web design as a fluid and the browser or device as a container. The fluid will fit into any container that you fill them to. With the rapid grow of internet, a lot of web wants to emerge in the shortest time in most of the device available.
This platform attract a lot of user because of the flexibility in fitting all device that we have, deskstop , mobile and tablet.

I am very much attracted by this because I have been having the same thinking, like the web design for tablet should be reusable for desktop, because they are in vertical display, while mobile is horizontal.
Then , i scroll and search a bit about this bootstrap (before I get my hands dirty on it) , i found that this platform seems to make a lot of effort in making some social media kind of application. A lot of support for media display such as photos, video or wordings. With more I read, I can agree that it is not suitable for a formal business used or complicated application/ system. It can be a heaven for developer that wants to create another great wave of social website but i have doubts if the source code in gitHub making your own code to be open source in one day.

I do not know in depth for this platform as I doesn't spend a lot of time to discover it, I get a lot of help from these websites .
:)
thanks to Google and others unquoted websites too :D

https://en.wikipedia.org/wiki/Responsive_web_design
http://getbootstrap.com/
http://www.zingdesign.com/5-reasons-not-to-use-twitter-bootstrap/
http://www.zingdesign.com/5-reasons-to-use-twitter-bootstrap/