.sidenav-container {
  height: 100%;
  width: 10vw;
  position: fixed;
  top: auto;
  left: 0;
  .sidenav {
    background-color: gray;
    height: 100%;
  }
}

.toolbar-spacer {
  flex: 1 1 auto;
}

.mat-toolbar {
  top: 0;
}