bootstrap row auto width code example

Example 1: no-gutter bootstrap 4

  
.col-12 .col-sm-6 .col-md-8
  
.col-6 .col-md-4

Example 2: col offset in bootstrap

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

Example 3: .row bootstrap

.row{
    display: flex;
    flex-wrap: wrap;
	margin-right: -15px;
    margin-left: -15px;
}