body {
  font-family: Arial;
  font-size: small;
}

img {
  border: 0;
}

h1 {
  color: royalblue;
  font-size: large;
  display: inline;
  padding-left: 0.5em;
  padding-right: 1.5em;
}

h2 {
  color: forestgreen;
  margin-top: 1.2em;
  margin-bottom:1.2em;
  font-size:medium;
}

.page-desc {
  font-weight: normal;
  color:#4169E1;
  font-size:small;
  margin-bottom: 1.2em;
}

.category-heading {
  font-style: italic;
  font-weight: bold;
  color: royalblue;
  margin-top: 1.5em;
  margin-bottom: 0.2em;
}

.help-page {
  display: block;
  margin-bottom: 0.5em;
  width:fit-content;
  margin-left: 0.5em;
  margin-top: 0;;
}

h3 a {
  color: inherit;
  text-decoration: inherit;
}

.header {
  display:flex;
  justify-content: space-between;
}

.highlight {
  background-color: yellow;
  transition: background-color 0.5s ease;
}