nav {
  position: fixed;
  padding-top: 20px;
  z-index: 50;
  background-color: rgb(255, 255, 255);
  margin-top: 0;
  left: 5px;
  bottom: 0;
  top: 50px;
  width: 58px;
}
nav img {
  height: 24px;
}
nav div {
  width: 72px;
  height: 90px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}
nav div div {
  font-size: 9px;
  height: 40px;
}
nav div:hover {
  background-color: rgb(235, 235, 235);
  cursor: pointer;
}