/* Set height of the grid so .sidenav can be 100% (adjust if needed) */
    .row.content {height: 1500px}
    
    /* Set gray background color and 100% height */
    .sidenav {
      background-color: #f1f1f1;
      height: 100%;
    }
    
    /* On small screens, set height to 'auto' for sidenav and grid */
    @media screen and (max-width: 767px) {
      .sidenav {
        height: auto;
        padding: 15px;
      }
      .row.content {height: auto;} 
    }


/* make sidebar nav vertical */ 
@media (min-width: 768px) {
  .sidebar-nav .navbar .navbar-collapse {
    padding: 0;
    max-height: none;
  }
  .sidebar-nav .navbar ul {
    float: none;
  }
  .sidebar-nav .navbar ul:not {
    display: block;
  }
  .sidebar-nav .navbar li {
    float: none;
    display: block;
  }
  .sidebar-nav .navbar li a {
    padding-top: 12px;
    padding-bottom: 12px;
  }
}