body {
  display: flex;
  justify-content: center;
  align-items: center;

  height: 100vh;
  width: 100vw;

  margin: 0;
  padding: 0;

  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
}
.ranger {
  display: flex;
  justify-content: center;
  align-items: center;

  height: 1.5rem;
  width: 100%;
  max-width: 30rem;

  padding: 0.4rem 0.75rem;
  box-sizing: border-box;
}
.ranger .line {
  position: relative;

  display: flex;
  align-items: center;

  height: 100%;
  width: 100%;

  background-color: #ced6e0;
  border-radius: 1rem;
}

.ranger .line .line-fill {
  height: 100%;
  width: 0;
  background-color: #18a058;
  border-radius: 1rem;
  transition: width 0.1s ease-out;
}
.ranger .line .ball {
  position: absolute;

  display: flex;
  justify-content: center;
  align-items: center;

  height: 1.5rem;
  width: 1.5rem;

  border-radius: 50%;

  box-shadow: 0 0 5px #000000aa, inset 0 0 1px #000000aa;
  background-color: white;
  transform: translateX(-50%);
  transition: left 0.1s ease-out;
}

.ranger .line .ball .label {
  position: relative;

  display: flex;
  justify-content: center;
  align-items: center;

  color: white;
  height: 3rem;
  width: 3rem;

  opacity: 0;
  transform: translateY(-10%) scale(0);

  transition: 0.2s;
  transition-property: opacity, transform;
  user-select: none;
}
.ranger .line .ball:hover .label,
.ranger.mousedown .line .ball .label {
  opacity: 1;
  transform: translateY(-100%) scale(1);
}
.ranger .line .ball .label::before {
  position: absolute;

  z-index: -1;

  font-size: 3rem;

  color: #000000aa;
  transform: translateY(10%);
}