Use the layout grid CSS classes to create a row and column layout for elements. Wrap each element in a div. Add the row CSS class 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