// Slider .@{prefix}-slider { .border-radius(3px); border: 1px solid @slider-border; background: @slider-bg; width: 100px; height: 10px; position: relative; display: block; } .@{prefix}-slider.@{prefix}-vertical { width: 10px; height: 100px; } .@{prefix}-slider-handle { .border-radius(3px); border: 1px solid @slider-handle-border; background: @slider-handle-bg; display: block; width: 13px; height: 13px; position: absolute; top: 0; left: 0; margin-left: -1px; margin-top: -2px; }