Bootstrap provides us a series of float utility classes, that allows an element to float left, right, or make it not to float, just like CSS float property. In addition to this, bootstrap provides responsive float classes, that makes an element float based on the viewport size Bootstrap breakpoints: sm: Viewport greater than 576px.md,Viewport greater than 768px.lg,Viewport greater than 992px, xl: Viewport greater than 1200px.