@media (–breakpoint-sm) {

.sm-inline       { display: inline }
.sm-block        { display: block }
.sm-inline-block { display: inline-block }
.sm-table        { display: table }
.sm-table-cell   { display: table-cell }

.sm-overflow-hidden { overflow: hidden }
.sm-overflow-scroll { overflow: scroll }
.sm-overflow-auto   { overflow: auto }

.sm-left  { float: left }
.sm-right { float: right }

}