.intro-container {
  display: flex;
}
.main-container {
  flex-grow: 1;
  margin-left: 19rem;
}

.component-link {
  color: var(--black-color);
  border-radius: 5px;
  padding: 0.8rem;
  width: 250px;
}
.sidebar {
  position: fixed;
  overflow-y: scroll;
  height: 80vh;
  width: 18rem;
  flex-shrink: 0;
}
.active-tab {
  font-weight: 600;
  color: var(--primary-color);
}

#hamburger {
  display: none;
}
.list-group {
  color: var(--white-color);
}
.nav-menu {
  position: fixed;
  left: -100%;
  height: 100%;
  z-index: 2;
  width: 100%;
  overflow: scroll;
  padding-top: 4rem;
  padding-bottom: 5rem;
  color: var(--white-color);
  background-color: var(--black-color);
  transition: all 0.5s ease-in-out;
}

/* media query */
@media only screen and (max-width: 800px) {
  .sidebar {
    display: none;
  }

  #hamburger {
    display: block;
  }
  .main-container {
    margin-left: 0rem;
    margin-right: 0rem;
  }

  .component-link {
    color: var(--white-color);
  }
  .list-group {
    color: var(--black-color);
  }
  .list-title {
    color: var(--white-color);
  }
}

@media only screen and (min-width: 800px) {
  .nav-menu {
    display: none;
  }
}