Bootstrap

Bootstrap: modular CSS

Sites are shown today on a variety of devices such as desktop PCs, Mobile Phones and tablets. So there is no way around layout and navigation concepts that take into account the different characteristics of these devices and the corresponding user behavior.

Through the modular CSS Framework bootstrap, programming is simplified. We use it frequently to implement layouts that are compatible with mobile devices and integrate current web-standards out-of-the-box.

 

links:

https://en.wikipedia.org/wiki/Bootstrap_(front-end_framework)

http://getbootstrap.com