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This video Teaches One of the Important topic of bootstrap “Grid” which use in every website project to make it responsive.

Grid Classes:-

The Bootstrap grid system has four classes:
1:- Col-xs-*
2:- Col-sm-*
3:-Col-md-*
4:-Col-lg-*
xs (for phones – screens less than 768px wide)
sm (for tablets – screens equal to or greater than 768px wide)
md (for small laptops – screens equal to or greater than 992px wide)
lg (for laptops and desktops – screens equal to or greater than 1200px wide)
The classes above can be combined to create more dynamic and flexible layouts.

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