// sortable .sortable() { display: inline-block; width: 9px; height: 12px; margin-left: 4px; margin-top: -1px; vertical-align: middle; overflow: hidden; cursor: pointer; position: relative; i { display: block; height: 6px; line-height: 6px; overflow: hidden; position: absolute; color: @btn-disable-color; transition: color @transition-time @ease-in-out; font-size: @font-size-large; &:hover{ color: inherit; } &.on{ color: @primary-color; } &:first-child{ top: 0; } &:last-child{ bottom: 0; } } }