row col in bootstrap code example

Example 1: bootstrap grid

  

    

      One of three columns
    
    

      One of three columns
    
    

      One of three columns
    
  

Example 2: bootstrap screen sizes

The Bootstrap grid system has four classes:
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)

Example 3: row class in bootstrap

/*
In Bootstrap, the "row" class is used mainly to hold columns in it.
Bootstrap divides each row into a grid of 12 virtual columns. 
In the following example, the col-md-6 div will have the width of 6/12 of the "row"s div, meaning 50%. 
The col-md-4 will hold 33.3%, and the col-md-2 will hold the remaining 16.66%.
*/


    

    

    

Example 4: .col-12 bootstrap

.col-12{
	flex: 0 0 100%;
	max-width: 100%;
}

Example 5: bootstrap grid class

col-12 col-sm-4 col-md-3 col-lg-12	col-xl-12