body {
  margin: 0;
  padding: 0;
  font-family: "Lato", sans-serif;
  text-align: justify;
}

.sidebar {
  margin: 0;
  padding: 0;
  width: 15%;
  background-color: #eee;
  position: fixed;
  top: 0;
  height: 100%;
  overflow: auto;
}

.sidebar a {
  display: block;
  color: black;
  padding: 16px;
  text-decoration: underline;
}

.sidebar a:hover {
  background-color: #ddd;
}

div.content {
  margin-left: 15%;
  padding: 0 2rem;
}

@media screen and (max-width: 700px) {
  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
  }
  .sidebar a {float: left;}
  div.content {margin-left: 0;}
}

@media screen and (max-width: 400px) {
  .sidebar a {
    text-align: center;
    float: none;
  }
}

hr {
  border: none;
  border-top: .15rem solid #ddd;
}