.RefreshBtn {
  position: absolute;
  left: 0;
  top: 20%;

  user-select: none;
  cursor: pointer;

  width: 40px;
  height: 200px;
  background-color: #e84d14;
  color: white;
  font-family: "Roboto Flex", sans-serif;
  font-size: 25px;
  writing-mode: tb-rl;
  transform: rotateZ(180deg);

  text-align: center;

  border-bottom-left-radius: 5px;
  border-top-left-radius: 5px;

  opacity: .8;
  z-index: 10;

  transition: .3s;
}

.RefreshBtn:hover {
  opacity: 1;
}

.useMaterial {
  background-color: #B9CDE5;
}

.diagnostic {
  background-color: #9f309d;
}