Use Bootstrap grid CSS classes to create a row and column layout for elements. Wrap each element in a div. Add the row and jha-tight-gutters CSS classes to row divs and one or more col-* CSS classes to column divs.
.col-xs-12, .col-md-6, .col-lg-8
.col-xs-12, .col-md-6, .col-lg-4
.col-xs-12, .col-md-4
.col-xs-12, .col-md-4
.col-xs-12, .col-md-4
.col-xs-6
.col-xs-6
.col-xs-12