The 12 column system is based on Bootstrap’s 12 column grid system. Using this system has more flexibility to create dynamic layouts and easily made to be fully responsive across all screen sizes.
The width of the screen is split into 12 equal columns covering 100% width. Learn more about the 12 column grid system
Easy to use animations. Animations effect the classes. If an item has the animation trigger icon that looks like a lightening bolt, attached to it then there is an animation that effects all the other items with the same class.(Image 1) To learn more about animations visit Webflows easy and clear guide to interations and animations.
You won't need to do anything to the animations if you like how they are now.