.sidenav {
  z-index: 1;
  background-color: transparent;
  width: 225px;
  height: calc(100vh - 65px);
  position: sticky;
  top: 65px;
  transition: 0.25s;
  margin-left: -250px;
  box-shadow: 5px 0px 30px 0px #000;
  padding-bottom: 20px;
}

.scrollable {
  overflow-x: hidden;
  overflow-y: scroll;
}

.sidenav.open {
  margin-left: 0px;
  left: 0px;
  display: block;
}

.sidenav a, button{
  text-decoration: none;
  color: lightgray;
  margin-left: 20px;
}
.sidenav a:hover {
  color: white;
}
.sidenav nav {
  width: 100%;
  height: calc(100vh - 65px);
  background-color: #1d1f31;
  padding-left: 20px;
  padding-right: 20px;
  padding-top: 20px;
  padding-bottom: 20px;
  @media (max-width: 991px) {
    padding-bottom: 200px;
  }
}

@media screen and (max-height: 450px) {
  .sidenav a {font-size: 18px;}
}