The bootstrap grid system has four classes.
Bootstrap gutter class.
Sm for tablets screens equal to or greater than 768px wide.
With bootstrap 3 2 being released they updated the way responsive utility classes work.
Xs for phones screens less than 768px wide.
Regular bootstrap version below with kittens.
Use 230 ready made bootstrap components from the multipurpose library.
Lg for laptops and desktops screens equal to or greater than 1200px wide.
Customize the size of your columns on extra small small medium large or extra large devices however you see fit.
Md for small laptops screens equal to or greater than 992px wide.
The bootstrap 4 grid system has five classes col extra small devices screen width less than 576px col sm small devices screen width equal to or greater than 576px col md medium devices screen width equal to or greater than 768px col lg large devices screen width equal to or greater than 992px col xl xlarge devices screen width equal to or greater than 1200px.
The gutters between columns in our predefined grid classes can be removed with no gutters.
Normally you would just assign visible xs visible sm visible md and visible lg to hide or show certain elements at different device widths.
You can copy our examples and paste them into your project.
Bootstrap s grid includes five tiers of predefined classes for building complex responsive layouts.
I came up with a handy no gutters class which has some pretty basic css that you apply to your row tag holding your columns.
Now here s our code for the no gutters class.