a {
  display: inline-block;
  width: 20px;
  color: #5f6c7b;
  text-decoration: none;
}

a:hover {
  color: #3da9fc;
}

nav,
scroll-container {
  display: block;
  margin: 0 auto;
  text-align: center;
}

nav {
  padding: 5px;
  border: 1px solid black;
}

scroll-container {
  display: block;
  width: 350px;
  height: 200px;
  margin-top: 1rem;
  overflow-y: scroll;
}

scroll-container#smooth {
  scroll-behavior: smooth;
}

scroll-container#auto {
  scroll-behavior: auto;
}

scroll-page {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  font-size: 5em;
}

em {
  font-size: 1.3rem;
}

@media (max-width: 600px) {
  scroll-container {
    width: 100%;
  }
}