[ad_1] https://i.ytimg.com/vi/41-lEe8mKwc/hqdefault.jpg This is freeCodeCamp tutorial of the “responsive design with bootstrap” section. In this lesson we remove old classes we added in previous lessons, and use bootstrap built in classes to acheive our desired results. Original source

[ad_1] https://i.ytimg.com/vi/CX1z_Gvxw80/hqdefault.jpg This is freeCodeCamp tutorial of the “responsive design with bootstrap” section. In this lesson we learn how bootstraps grid system works. We learn that a page is divided into 12 columns and those 12 can be manipulated in different ways to position content on a webpage in a variety of ways. Original source