body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

footer {
  flex-shrink: 0;
}

.article-body {
  font-size: 17px;
  line-height: 1.8;
}

.article-body img {
  max-width: 100%;
  height: auto;
}

.categories li {
  margin: 0.5rem 0;
}

.overview.article {
  cursor: pointer;
}

.overview.article.selected {
  background-color: pink;
}