row and col in bootstrap code example

Example 1: col offset in bootstrap

.col-md-3 .offset-md-3

Example 2: 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%.
*/

<div class="row">
    <div class="col-md-6"></div>
    <div class="col-md-4"></div>
    <div class="col-md-2"></div>
</div>

Example 3: .col-6 bootstrap

.col-6{
	flex: 0 0 50%;
	max-width: 50%;
}

Example 4: bootstrap grid class

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