.my-slider-progress{background:#ccc;width:75%;height:2px;position:absolute;bottom:-50px;left:20px}.my-slider-progress-bar{color:#fff;text-align:center;background:#4723b5;border-radius:10px;width:100px;height:10px;line-height:10px;transition:left .4s;position:absolute;bottom:-5px;left:0}