.sidebar {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100; /* Behind the navbar */
  padding: 48px 0 0; /* Height of navbar */
  box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
}

.sidebar-sticky {
  position: relative;
  top: 0;
  height: calc(100vh - 48px);
  padding-top: .5rem;
  overflow-x: hidden;
  overflow-y: auto; /* Scrollable contents if viewport is shorter than content. */
}

[role="main"] {
  padding-top: 133px; /* Space for fixed navbar */
}

@media (min-width: 768px) {
  [role="main"] {
    padding-top: 48px; /* Space for fixed navbar */
  }
}

footer {
    background-color: #f5f5f5;
    height: 30px;
}