utilities.less
Use quick preset classes to add margins and paddings to any elements:
.m-xx : Margin (All directions).mv-xx : Vertical margins (top+bottom).mh-xx : Horizontal margins (left+right).mt-xx : Top margin.mb-xx : Bottom margin.p-xx : Padding (All directions).pv-xx : Vertical paddings (top+bottom).ph-xx : Horizontal paddings (left+right).pt-xx : Top padding.pb-xx : Bottom paddingWhere xx is 5,10,15,20.