• Bootstrap 3 redesigned the components to use flat design & mobile first approach
  • Bootstrap provides the grid system for defining the layouts. The grid system has 12 columns, and many device sizes like Extra small devices(Phones), Small devices(Ipad, Tablet), Medium Devices(Desktop) and Large Devices(Desktop) and the sizes of each of the devices are pre-defined, and these pre-defined classes take the responsibility of the responsive aspects, therefore, no CSS is required.
  • The layout system of Bootstrap is percentage based which keeps the mobile device support at the forefront.
BY Best Interview Question ON 23 Jan 2019