.mp-pk-progress-bar{position:relative;width:100%;box-sizing:border-box}.progress-bar-box{position:relative;display:flex;width:100%;align-items:center;overflow:hidden}.bar-chunk,.left-bar,.right-bar{transition:all .2s linear}.bar-chunk{position:absolute;top:0;left:0;z-index:10;opacity:1;background-color:#fff}.bar-chunk.hide{opacity:0}.bar-chunk-inner{width:100%;height:100%}