.track-progress {
    margin: 0;
    padding: 0;
    overflow: hidden;
}
.track-progress li {
  list-style-type: none;
  display: inline-block;

  position: relative;
  margin: 0;
  padding: 0;

  text-align: center;
  line-height: 30px;
  height: 30px;

  background-color: #f0f0f0;
}
.track-progress[data-steps="3"] li { width: 33%; }
.track-progress[data-steps="4"] li { width: 24%; }
.track-progress[data-steps="5"] li { width: 19%; }
.track-progress[data-steps="6"] li { width: 16%; }

.track-progress li > span {
  display: block;

  color: #999;
  font-weight: normal;
  /*text-transform: uppercase;*/
}

.track-progress li.done > span {
  color: #666;
  background-color: #ccc;
}

.track-progress li > span:after,
.track-progress li > span:before {
  content: "";
  display: block;
  width: 0px;
  height: 0px;

  position: absolute;
  top: 0;
  left: 0;

  border: solid transparent;
  border-left-color: #f0f0f0;
  border-width: 15px;
}

.track-progress li > span:after {
  top: -5px;
  z-index: 1;
  border-left-color: white;
  border-width: 20px;
}

.track-progress li > span:before {
  z-index: 2;
}

.track-progress li.done + li > span:before {
  border-left-color: #ccc;
}

.track-progress li:first-child > span:after,
.track-progress li:first-child > span:before {
  display: none;
}
.track-progress li:first-child i,
.track-progress li:last-child i {
  display: block;
  height: 0;
  width: 0;

  position: absolute;
  top: 0;
  left: 0;

  border: solid transparent;
  border-left-color: white;
  border-width: 15px;
}

.track-progress li:first-child i,
.track-progress li:last-child i {
  display: block;
  height: 0;
  width: 0;

  position: absolute;
  top: 0;
  left: 0;

  border: solid transparent;
  border-left-color: white;
  border-width: 15px;
}

.track-progress li:last-child i {
  left: auto;
  right: -15px;

  border-left-color: transparent;
  border-top-color: white;
  border-bottom-color: white;
}