Bootstrap layout is built on a flexible grid layout that adjusts seamlessly to different screen sizes. It uses a 12-column grid system to create responsive designs. You can control the width and positioning of columns by combining classes for different screen sizes (e.g.,.col-md-6 for medium devices).

You can quickly create multi-column layout with pre-defined classes. You can quickly create different types of form layouts. You can quickly create different variation of navigation bar. You can easily create components like accordions, modals, etc. without writing any JS code. You can easily create dynamic tabs to manage large amount of content.