bi-progress-line {
  position: relative;
  display: block;
  height: 0; }
  bi-progress-line div {
    height: 3px;
    margin: 0; }
    bi-progress-line div.bpl-main {
      transition: width .5s;
      background-color: #4c9ef0; }
    bi-progress-line div.bpl-container {
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      bottom: 0; }
    bi-progress-line div.bpl-container-off {
      transition: opacity 3.5s;
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      bottom: 0;
      background-color: #4c9ef0;
      opacity: 1; }