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              <!-- Change the below data attribute to play -->
<div class="progress-wrap progress" data-progress-percent="25">
  <div class="progress-bar progress"></div>
              @import "compass/css3";

.progress {
  width: 100%;
  height: 50px;
.progress-wrap {
  background: #f80;
  margin: 20px 0;
  overflow: hidden;
  position: relative;
  .progress-bar {
    background: #ddd;
    left: 0;
    position: absolute;
    top: 0;

              // on page load...
    // on browser resize...
    $(window).resize(function() {

    function moveProgressBar() {
        var getPercent = ($('.progress-wrap').data('progress-percent') / 100);
        var getProgressWrapWidth = $('.progress-wrap').width();
        var progressTotal = getPercent * getProgressWrapWidth;
        var animationLength = 2500;
        // on page load, animate percentage bar to data percentage length
        // .stop() used to prevent animation queueing
            left: progressTotal
        }, animationLength);
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