.slider {
  position: relative;
  width: 100%;
  height: 32px;
  cursor: pointer;
}
.slider .progress {
  position: absolute;
  top: 0;
  left: 16px;
  height: 100%;
  width: calc(100% - 32px);
}
.slider .progress-sections {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
}
.slider .progress-section {
  position: absolute;
  top: 25%;
  width: 1px;
  left: 0;
  height: 50%;
  background-color: black;
}
.slider .progress-section--major {
  top: 12.5%;
  height: 75%;
  width: 1px;
  transition: all 100ms;
}
.slider .progress-bar {
  position: absolute;
  top: 15px;
  left: 0;
  height: 2px;
  width: 100%;
  padding: 8px 0;
  margin: -8px 0;
}
.slider .progress-bar--container {
  position: relative;
  height: 100%;
  background-color: #c8c8c8;
  overflow: hidden;
  height: 1px;
}
.slider .progress-bar-active, .slider .progress-bar-secondary {
  -webkit-transform-origin: left center;
  transform-origin: left center;
  -webkit-transform: scaleX(0);
  transform: scaleX(0);
}
.slider .progress-bar-active {
  background-color: #3f51b5;
}
.slider .progress-bar-secondary {
  background-color: #87ceac;
}
.slider-knob {
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  left: 58%;
  cursor: pointer;
  opacity: 0;
}
.slider-knob--inner {
  width: 18px;
  height: 18px;
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  border-radius: 50%;
  background-color: #1f5115;
  transition: all 0.18s ease;
  -webkit-transform: translateX(7px) translateY(7px);
  -moz-transform: translateX(7px) translateY(7px);
  -ms-transform: translateX(7px) translateY(7px);
  -o-transform: translateX(7px) translateY(7px);
  transform: translateX(7px) translateY(7px);
}
.slider-knob.active .slider-knob--inner {
  background-color: rgba(31, 81, 21, 0.7);
}
.slider .bubble {
  position: absolute;
  padding: 5px;
  top: -40px;
  left: -38px;
  min-width: 90px;
  text-align: center;
  color: #fff;
  background: #1f5115;
  -webkit-border-radius: 10px;
  -moz-border-radius: 10px;
  border-radius: 10px;
  opacity: 0;
  transition: all 75ms;
}
.slider .bubble:before {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  width: calc(50% + 20px);
  height: 10px;
  margin: 0 0 0 -50px;
  background: #1f5115;
}
.slider .bubble:after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: -10px;
  width: calc(50% + 10px);
  height: 10px;
  background: #fff;
  -webkit-border-top-right-radius: 15px;
  -moz-border-radius-topright: 15px;
  border-top-right-radius: 15px;
}
.slider .bubble > div {
  font-family: Arial;
  font-variant: small-caps;
}
.slider .bubble > div:before {
  content: "";
  position: absolute;
  bottom: -10px;
  right: 0;
  width: 50%;
  height: 10px;
  background: #fff;
  -webkit-border-top-left-radius: 15px;
  -moz-border-radius-topleft: 15px;
  border-top-left-radius: 15px;
}
.slider.expand .slider-knob--inner {
  width: 100%;
  height: 100%;
  -webkit-transform: translateX(0px) translateY(0px);
  -moz-transform: translateX(0px) translateY(0px);
  -ms-transform: translateX(0px) translateY(0px);
  -o-transform: translateX(0px) translateY(0px);
  transform: translateX(0px) translateY(0px);
}
.slider.expand .bubble {
  opacity: 1;
}