.progressbar {
  background-color: black;
  border-radius: 13px;
  /* (height of inner div) / 2 + padding */
  padding: 3px;
  text-align:right;
}

.progressbar>div {
    color: black;
  background-color: orange;
  width: 40%;
  /* Adjust with JavaScript */
  height: 20px;
  border-radius: 10px;
}