What does Col XS mean in Bootstrap?

The Bootstrap Col-XS ( extra small) class applies a grid column class to an element when the screen is narrower than 576px. It is created by using Bootstrap col-xs-* in your code. The Bootstrap extra small ( col-xs) column classes apply when the screen is narrower than 576px.

Why is Col-XS-* not working in Bootstrap 5?

More changes were made to the grid system classes in bootstrap 5, with the introduction of col-xxl -* for extra-extra-large devices. In our example code at the top of the page, col-xs-* did not work as expected. The reason was because of versions conflict. We were using bootstrap version 5, where that class is not supported.

What is a responsive class in Bootstrap XS?

The responsive classes are used in the grid system to specify the size of the screen that a certain layout works on. Bootstrap extra small, or Col-XS class applies a grid column class to an element when the user is not using a screen that is wider than 576px.

What is a column in Bootstrap?

column: This Bootstrap class allows us to construct a column in a row, and we can use it to create up to 12 columns in a row or combine them to make broader columns. .xs-grid class: The bootstrap-3 grid system provides this class, which allows us to design a user interface for devices whose screen sizes is less than 768px.